Talk:Known Bugs - Revision history

7Saturn: /* Alien weapon loadouts bug/anomaly */

2026-03-16T20:06:27Z

Alien weapon loadouts bug/anomaly

← Older revision		Revision as of 20:06, 16 March 2026
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	==Alien weapon loadouts bug/anomaly==		==Alien weapon loadouts bug/anomaly==
	There are actually 10 alien weapon loadout sets, not 9. The actual first set is 70% "early"/20% "mid"/10% "late". This loadout set never appears in-game, though, because the setup at game start counts as a month rollover which means that weapon loadouts (which are called when the mission occurs, not at month start when the mission is scheduled) are called from the second set during January, the third set during February, and so on. This is probably an oversight by the Gollops (note that race weights reach their final values in October; were it not for this quirk, weapon loadouts also would), but it's hard to be sure. Should this be added? [[User:Magic9mushroom\|Magic9mushroom]] ([[User talk:Magic9mushroom\|talk]]) 15:02, 28 April 2025 (UTC)		There are actually 10 alien weapon loadout sets, not 9. The actual first set is 70% "early"/20% "mid"/10% "late". This loadout set never appears in-game, though, because the setup at game start counts as a month rollover which means that weapon loadouts (which are called when the mission occurs, not at month start when the mission is scheduled) are called from the second set during January, the third set during February, and so on. This is probably an oversight by the Gollops (note that race weights reach their final values in October; were it not for this quirk, weapon loadouts also would), but it's hard to be sure. Should this be added? [[User:Magic9mushroom\|Magic9mushroom]] ([[User talk:Magic9mushroom\|talk]]) 15:02, 28 April 2025 (UTC)

			== De-Selection/Camera Positioning Bug ==
			Not sure if you can call this a bug, but I just experienced something weird, that I'm also partially capable of reproducing:

			# Click the »Select the next unit and forget the current one.« button (9 [[Battlescape#Battlescape_Screen\|here]]) until you run out of other soldiers to select.
			# Save the game.
			# Load it again.

			Depending on the situation on the battlescape you might start out with the camera (viewpoint) somewhere close to your own soldiers or far away from them. No soldier is selected any more (unlike when you saved the game, as then the last soldier was not deselected when you tried to skip/de-select the last guy). If you are unlucky, all is black as you are '''really''' far out. The map-button does work. But it's difficult to navigate into a reasonable direction if you are just far out enough, where you see nothing. You simply have no reference to know in which direction you should scroll or jump on the map. As you have previously instructed the game to not re-select any of your soldiers again, you have no means of properly getting back to one of them by using the »Select the next unit« button. The inventory button does of course also not work, as you have not selected any soldier any longer. So you can also not jump to the next guy by this means. So you are basically stuck somewhere in the void with no way of getting to the next unit. At best you figure out in which direction you should jump with the map button.

			As I said, I could partially reproduce this in a freshly started game. There I was luckily not as far out as that I had no reference of where to scroll to. But the behavior was fairly the same. If you end up just far out enough, where everything is black, the save is kinda broken.

			Added by ''7Saturn''.

TowigOs: Add a missing space

2025-08-08T13:09:01Z

Add a missing space

← Older revision		Revision as of 13:09, 8 August 2025
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	== Common bugs vs. UFO EU specific bugs ==		== Common bugs vs. UFO EU specific bugs ==

	I ~~believethere~~ is one more thing that needs to be cleaned. Namely, both EU and TFTD share the same game engine, so some bugs are common for them both. However, there exists a page with a list of TFTD bugs, and it is clear (or: should be clear) which of the bugs are specific for TFTD. I think the same should be done with EU specific bugs: to hold them apart from bugs common for both games. Some bugs exist in both games but manifest themselves differently (like problems with mind-controlling of big aliens) - they are not true common bugs.		I believe there is one more thing that needs to be cleaned. Namely, both EU and TFTD share the same game engine, so some bugs are common for them both. However, there exists a page with a list of TFTD bugs, and it is clear (or: should be clear) which of the bugs are specific for TFTD. I think the same should be done with EU specific bugs: to hold them apart from bugs common for both games. Some bugs exist in both games but manifest themselves differently (like problems with mind-controlling of big aliens) - they are not true common bugs.

	Or even more: one could expect a clear information by each bug, in which game and in which version of the game the bug occurs. And whether a patch exists or not. Sometimes such information is given now, and sometimes it is not. And if one does not know exactly which versions are affected by the bug, it should also be mentioned clearly.		Or even more: one could expect a clear information by each bug, in which game and in which version of the game the bug occurs. And whether a patch exists or not. Sometimes such information is given now, and sometimes it is not. And if one does not know exactly which versions are affected by the bug, it should also be mentioned clearly.

	[[User:Sherlock\|Sherlock]] 04:13, 27 December 2012 (EST)		[[User:Sherlock\|Sherlock]] 04:13, 27 December 2012 (EST)


	== Rename page title to indicate which game this refers to? ==		== Rename page title to indicate which game this refers to? ==

TowigOs: Clarification on no money errors

2025-08-08T13:06:57Z

Clarification on no money errors

← Older revision		Revision as of 13:06, 8 August 2025
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	== Transfers can put you into debt ==		== Transfers can put you into debt ==

	Any action you can do that consumes money will throw a big fat "NOT ENOUGH MONEY" error if you don't have the prerequisite cash on hand. Except item transfers. You can transfer stuff around merrily even when you are tens of millions in debt and on the brink of collapse from financial mismanagement. Maybe aliens MCed the movers to skip checking for money on your bank account and just hope they will get paid, eventually. Or they might MCed your bank to lend you money behind your back, allowing to go bankrupt reorganizing the content of your bases. At least you don't have to pay interest on these unwanted loans.		Any action you can do that consumes money will either throw a big fat "NOT ENOUGH MONEY" error (build facility; purchases, etc) or just plain hide the button to actually do it (manufacturing) if you don't have the prerequisite cash on hand. Except item transfers. You can transfer stuff around merrily even when you are tens of millions in debt and on the brink of collapse from financial mismanagement. Maybe aliens MCed the movers to skip checking for money on your bank account and just hope they will get paid, eventually. Or they might MCed your bank to lend you money behind your back, allowing to go bankrupt reorganizing the content of your bases. At least you don't have to pay interest on these unwanted loans.

	Looks like someone forgot to put "if (money<invoice) then {NotEnoughMoney();return;}" somewhere into that code path.		Looks like someone forgot to put "if (money<invoice) then {NotEnoughMoney();return;}" somewhere into that code path.

TowigOs: Add clarifying text to the "Unconfirmed bugs" section

2025-08-04T21:58:16Z

Add clarifying text to the "Unconfirmed bugs" section

← Older revision		Revision as of 21:58, 4 August 2025
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	= Unconfirmed bugs =		= Unconfirmed bugs =

			These may either be actual bugs that only exist as rumors and nobody confirmed them (yet) or stuff that may look like a bug but actually is a feature.

	== Alien mission succeeds despite Ground Assault ==		== Alien mission succeeds despite Ground Assault ==

TowigOs: Forgot signature

2025-08-04T21:55:48Z

Forgot signature

← Older revision		Revision as of 21:55, 4 August 2025
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	Looks like someone forgot to put "if (money<invoice) then {NotEnoughMoney();return;}" somewhere into that code path.		Looks like someone forgot to put "if (money<invoice) then {NotEnoughMoney();return;}" somewhere into that code path.

	Note: Getting into debt because your base maintenance is much higher than your income and you did not have the cash is perfectly OK. These bills have to be paid. And you will go belly up financially if you allow this to go too deep.		Note: Getting into debt because your base maintenance is much higher than your income and you did not have the cash is perfectly OK. These bills have to be paid. And you will go belly up financially if you allow this to go too deep. ([[User:TowigOs\|TowigOs]] ([[User talk:TowigOs\|talk]]) 21:55, 4 August 2025 (UTC))

	=Cleanup needed=		=Cleanup needed=

TowigOs: Transfers can put you into debt bug

2025-08-04T21:55:21Z

Transfers can put you into debt bug

← Older revision		Revision as of 21:55, 4 August 2025
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	I need to add that I was playing some weird version of the game whose data was rejected by OpenXCom with "an invalid CHRYS.PCK file, please update to the latest version" message. So I don't know if this bug exists only there or is present in the latest version of the game too or even whether this is a bug or an expected behavior. - [[User:TowigOs\|TowigOs]] ([[User talk:TowigOs\|talk]]) 00:24, 3 August 2025 (UTC)		I need to add that I was playing some weird version of the game whose data was rejected by OpenXCom with "an invalid CHRYS.PCK file, please update to the latest version" message. So I don't know if this bug exists only there or is present in the latest version of the game too or even whether this is a bug or an expected behavior. - [[User:TowigOs\|TowigOs]] ([[User talk:TowigOs\|talk]]) 00:24, 3 August 2025 (UTC)

			== Transfers can put you into debt ==

			Any action you can do that consumes money will throw a big fat "NOT ENOUGH MONEY" error if you don't have the prerequisite cash on hand. Except item transfers. You can transfer stuff around merrily even when you are tens of millions in debt and on the brink of collapse from financial mismanagement. Maybe aliens MCed the movers to skip checking for money on your bank account and just hope they will get paid, eventually. Or they might MCed your bank to lend you money behind your back, allowing to go bankrupt reorganizing the content of your bases. At least you don't have to pay interest on these unwanted loans.

			Looks like someone forgot to put "if (money<invoice) then {NotEnoughMoney();return;}" somewhere into that code path.

			Note: Getting into debt because your base maintenance is much higher than your income and you did not have the cash is perfectly OK. These bills have to be paid. And you will go belly up financially if you allow this to go too deep.

	=Cleanup needed=		=Cleanup needed=

TowigOs: Fix typos and add missing info

2025-08-03T00:30:07Z

Fix typos and add missing info

← Older revision		Revision as of 00:30, 3 August 2025
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	== Alien mission succeeds despite Ground Assault ==		== Alien mission succeeds despite Ground Assault ==

	Suppose aliens decide to do a mission. So they send a scout UFO. If you shoot it down, the alien mission gets derailed and the next scout becomes delayed, sometimes a little, sometimes a lot. Seems like the headquarters are waiting for the first scout to report back home. So you shoot down ~~the second scout~~. The third one also takes a long while to arrive and if you shoot that down too, the aliens either give up completely or send their big ships which only aimlessly fly to and fro, never ~~lands~~ and ~~leaves~~ soon, empty handed. ~~The~~ alien mission is a failure.		Suppose aliens decide to do a mission. So they send a scout UFO. If you shoot it down, the alien mission gets derailed and the next scout becomes delayed, sometimes a little, sometimes a lot. Seems like the headquarters are waiting for the first scout to report back home or something. But eventually the second scout shows up so you shoot it down too. The third one also takes a long while to arrive and if you shoot that down too, the aliens either give up on the mission completely or send their big ships which only aimlessly fly to and fro, never land and leave soon, empty handed. This way or that way, the alien mission is a failure.

	On the other hand if you wait for the scout to land, assault it with your Skyranger and win the mission, the alien's mission continues as if nothing happened. The ~~new~~ scout appears on time. So you ground-assault it too but the third and fourth scout also appear on time. Then the larger UFOs show up and land as if nothing happened to the scouts. You ground-assault them too, including the last Battleship that happens. But ~~gues~~ what? The alien mission is a SUCCESS even despite none of the UFOs making it back to base. Really annoying if the mission is an Infiltration, you can't take their juicy big UFOs because if you do, you are going to lose a country.		On the other hand if you wait for the scout to land, assault it with your Skyranger and win the mission, the alien's mission continues as if nothing happened. The second scout appears on time. So you ground-assault it too but the third and fourth scout also appear on time. Then the larger UFOs show up and land as if nothing happened to the scouts. You ground-assault them too, including the last Battleship that happens. But guess what? The alien mission is a SUCCESS even despite none of the UFOs making it back to base. Really annoying if the mission is an Infiltration, you can't take their juicy big UFOs because if you do, you are going to lose a country. But on the other hand all these Alien Harvests and Alien Abductions? Lots of juicy spoil and tons of points despite the aliens achieving what they wanted.

	I need to add that I was playing some weird version of the game whose data was rejected by OpenXCom with "an invalid CHRYS.PCK file, please update to the latest version" message. So I don't know if this bug exists only there or is present in the latest version of the game too or even whether this is a bug or an expected behavior. - [[User:TowigOs\|TowigOs]] ([[User talk:TowigOs\|talk]]) 00:24, 3 August 2025 (UTC)		I need to add that I was playing some weird version of the game whose data was rejected by OpenXCom with "an invalid CHRYS.PCK file, please update to the latest version" message. So I don't know if this bug exists only there or is present in the latest version of the game too or even whether this is a bug or an expected behavior. - [[User:TowigOs\|TowigOs]] ([[User talk:TowigOs\|talk]]) 00:24, 3 August 2025 (UTC)

TowigOs: New section for unconfirmed bugs plus one I remember

2025-08-03T00:24:13Z

New section for unconfirmed bugs plus one I remember

← Older revision		Revision as of 00:24, 3 August 2025
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	Update 2: Thanks NKF, I'm not running TFTD, but I figured out that I was running v1.2 of XCOM1. I cannot reproduce the bug on v1.4 so the bug only applies to v1.2 and has been patched in newer versions. - [[User:Uncertainty\|Uncertainty]] 16:45, 31 Dec 2016 (AEDT)		Update 2: Thanks NKF, I'm not running TFTD, but I figured out that I was running v1.2 of XCOM1. I cannot reproduce the bug on v1.4 so the bug only applies to v1.2 and has been patched in newer versions. - [[User:Uncertainty\|Uncertainty]] 16:45, 31 Dec 2016 (AEDT)

			= Unconfirmed bugs =

			== Alien mission succeeds despite Ground Assault ==

			Suppose aliens decide to do a mission. So they send a scout UFO. If you shoot it down, the alien mission gets derailed and the next scout becomes delayed, sometimes a little, sometimes a lot. Seems like the headquarters are waiting for the first scout to report back home. So you shoot down the second scout. The third one also takes a long while to arrive and if you shoot that down too, the aliens either give up completely or send their big ships which only aimlessly fly to and fro, never lands and leaves soon, empty handed. The alien mission is a failure.

			On the other hand if you wait for the scout to land, assault it with your Skyranger and win the mission, the alien's mission continues as if nothing happened. The new scout appears on time. So you ground-assault it too but the third and fourth scout also appear on time. Then the larger UFOs show up and land as if nothing happened to the scouts. You ground-assault them too, including the last Battleship that happens. But gues what? The alien mission is a SUCCESS even despite none of the UFOs making it back to base. Really annoying if the mission is an Infiltration, you can't take their juicy big UFOs because if you do, you are going to lose a country.

			I need to add that I was playing some weird version of the game whose data was rejected by OpenXCom with "an invalid CHRYS.PCK file, please update to the latest version" message. So I don't know if this bug exists only there or is present in the latest version of the game too or even whether this is a bug or an expected behavior. - [[User:TowigOs\|TowigOs]] ([[User talk:TowigOs\|talk]]) 00:24, 3 August 2025 (UTC)

	=Cleanup needed=		=Cleanup needed=

Magic9mushroom at 15:02, 28 April 2025

2025-04-28T15:02:45Z

← Older revision		Revision as of 15:02, 28 April 2025
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	:: Thanks, good to know. Would still love to know if anyone has tested this in classic game. If not, I will when I can, so it can be added to known bugs [[User:Mugwump\|Mugwump]] ([[User talk:Mugwump\|talk]]) 22:05, 15 June 2021 (UTC)		:: Thanks, good to know. Would still love to know if anyone has tested this in classic game. If not, I will when I can, so it can be added to known bugs [[User:Mugwump\|Mugwump]] ([[User talk:Mugwump\|talk]]) 22:05, 15 June 2021 (UTC)

			==Alien weapon loadouts bug/anomaly==
			There are actually 10 alien weapon loadout sets, not 9. The actual first set is 70% "early"/20% "mid"/10% "late". This loadout set never appears in-game, though, because the setup at game start counts as a month rollover which means that weapon loadouts (which are called when the mission occurs, not at month start when the mission is scheduled) are called from the second set during January, the third set during February, and so on. This is probably an oversight by the Gollops (note that race weights reach their final values in October; were it not for this quirk, weapon loadouts also would), but it's hard to be sure. Should this be added? [[User:Magic9mushroom\|Magic9mushroom]] ([[User talk:Magic9mushroom\|talk]]) 15:02, 28 April 2025 (UTC)

JGFMK: /* Enemy Unknown 1994: Save game bug mid mission. */

2023-07-04T14:12:50Z

Enemy Unknown 1994: Save game bug mid mission.

← Older revision		Revision as of 14:12, 4 July 2023
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	I've had it occur frequently when going to the NW edge of a map.		I've had it occur frequently when going to the NW edge of a map.

	~~Addition by JGFMK:~~
	(I confirm same setup Skyranger/14 soldiers Laser Rifles. Dosbox/Mac. I know game as XFO Defense with XCOMUtils applied too. I had issue on Alien base 1. I have a save game and can suggest moving a unit and saving it in another slot - that alone causes the issue. So if someone knows how to debug this I can supply that).

	~~Corruption of the save, seems to coincide with crossing a threshold of a number of actions~~ on a ~~number of soldiers within a turn. After the threshold is crossed each attempt to~~ save ~~on subsequent turns mid mission are all corrupted, leading to the possibility of filling all 10~~ game ~~slots with trashed saves, forcing~~ a ~~restart of the game from turn 1!~~		I also had issue on Alien base 1. I have a save game and can suggest moving a unit and saving it in another slot - that alone causes the issue. So if someone knows how to debug this I can supply that. Not sure if the combined number of aliens and yourself casue this.. I managed to eventually work thru a series of corrupted saves that wouldn't load to one that worked again).
	~~As long as you don't cross the threshold before~~ saving~~, and there is one remaining action~~ that ~~would corrupt~~ the ~~game on a given turn, progressing~~ to the ~~next turn seems to reset the count on the~~ number of ~~actions, so you can perform multiple actions instead~~ of one ~~the next turn~~.

	Here is a sample save game where the game only needs one specific movement to corrupt a game when you save after the move.		Here is a sample save game where the game only needs one specific movement to corrupt a game when you save after the move.