0004297: D2IG24 in igpack11.wad crashes server without a trace caused by "actor hits floor" teleport

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This issue is already marked as resolved.
If you feel that is not the case, please reopen it and explain why.

Supporters:

No one explicitly supports this issue yet.

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Issue History
Date Modified	Username	Field	Change
2024-05-29 21:07	unknownna	New Issue
2024-05-29 21:21	unknownna	File Added: Clue_botkillbot.png
2024-05-29 21:21	unknownna	Note Added: 0023731
2024-05-29 22:49	unknownna	Note Edited: 0023731	View Revisions
2024-05-29 22:59	unknownna	Note Added: 0023732
2024-05-30 01:24	unknownna	Reproducibility	random => always
2024-05-30 01:24	unknownna	Status	new => acknowledged
2024-05-30 01:24	unknownna	Resolution	open => waiting for zdoom
2024-05-30 01:24	unknownna	Summary	D2IG24 in igpack11.wad crashes server without a trace if bots are present on map in team DM => D2IG24 in igpack11.wad crashes server without a trace caused by "actor hits floor" teleport
2024-05-30 01:24	unknownna	Description Updated	View Revisions
2024-05-30 01:24	unknownna	Steps to Reproduce Updated	View Revisions
2024-05-30 01:25	unknownna	File Added: actorhitfloor_telecrash_01.wad
2024-05-30 01:30	unknownna	File Added: Screenshot_Doom_20240530_032957.png
2024-05-30 01:39	unknownna	Note Edited: 0023732	View Revisions
2024-05-30 13:04	WaTaKiD	Note Added: 0023733
2024-05-30 15:34	unknownna	Note Added: 0023734
2024-05-31 16:56	unknownna	Note Edited: 0023734	View Revisions
2024-05-31 16:56	unknownna	Relationship added	duplicate of 0002803
2024-05-31 16:57	unknownna	Status	acknowledged => closed
2024-05-31 16:57	unknownna	Resolution	waiting for zdoom => duplicate

Notes
(0023731) unknownna (updater) 2024-05-29 21:21 edited on: 2024-05-29 22:49	It seemed work fine until a bot killed another bot. Then it immediately crashed. See the attached screenshot. It also crashes when I remove all scripts from the map.

(0023732) unknownna (updater) 2024-05-29 22:59 edited on: 2024-05-30 01:39	It's caused by some actor hits floor teleport, not bots. It's an ancient ZDoom issue. I made a report over at their forums:'https://forum.zdoom.org/viewtopic.php?t=79174 [^]'

(0023733) WaTaKiD (updater) 2024-05-30 13:04	reported multiple times already as per'https://zandronum.com/tracker/view.php?id=1985 [^]' and its related tickets unfortunately

(0023734) unknownna (updater) 2024-05-30 15:34 edited on: 2024-05-31 16:56	I see, thank you! Let's hope they finally fix it in ZDoom. If not, then either we'd need a compatflag if possible, or the maps would need to be patched individually. The map pack in question will always crash the server when playing that map. "Actor lands on floor" teleporters that feel a bit more modern compared to the simple linedef-based ones are completely reasonable to expect to work when making a map. The igpack11.wad is also a classic Skulltag map pack and part of its tradition and heritage. ZDoom now has a compatflag named compat_teleport that fixes this. I'm closing this ticket then since we found out what the issue is.