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Any map that replaces waterfall, bloodfall, or lavafall textures . Here are some map pack that the glitch occurred on.
https://www.doomworld.com/idgames/levels/doom2/megawads/epic2 Map pack shown in the images , map shown is map12.
https://www.doomworld.com/idgames/levels/doom/Ports/megawads/neis E1m2 has some lavafall textures that are replaced with a new nukage-fall texture . When playing on Brutal Doom it they will appear as lavafall textures.
https://www.doomworld.com/idgames/levels/doom/Ports/megawads/deathless E1m1 has a brown waterfall directly to the right of the start. It appears as a lavafall in Brutal Doom.
https://www.doomworld.com/forum/topic/46002-sunder-map20-appears-finally/ Both Sunder and SFPWDHTFS (next link) have a lot of replaced textures in map05 . They should appear as lavafall textures , but appear as waterfall textures in Brutal Doom.
https://www.doomworld.com/forum/topic/144252-boom-sunder-for-people-who-dont-have-time-to-play-sunder/

Hope this helps.

[quote=Sonic92 post_id=1256213 time=1730527686 user_id=40137]
When playing on a Map pack that replaces the bloodfalls texture,It may be a good idea to link to the mod in question
[/quote]

It may be a good idea to link to the Map pack in question.
Just in case someone could help with the mystery.

Ok. So , changing the load order did not work .Putting Brutal Doom either before or after the map wad lead to the same error.
It must be something else.

Try to change order in which pwads are loaded. I personally use DoomRunner for such purposes.

I'm having a problem with Brutal Doom, it happens with any version of base Brutal Doom, but not Project Brutality or any other mods.

When playing on a Map pack that replaces the bloodfalls texture, and with versions below V22 Beta 4, the lavafalls texture as well , it wont get replaced and it will still show up as bloodfalls or lavafalls.

I've attached screenshot of what it looks like in V22 Beta 4 , V21, and vanilla Gzdoom. Screenshots were captured on Epic 2 Map 12. It also occurred on No End In Sight, and any other wads that replace those textures.



P.S. Female Mugshot on V22 Beta 4 Screenshot can be found here https://www.moddb.com/mods/brutal-doom/addons/doom-female-hud-icon-by-nxgrangel
I've asked for help with this on the Doom SubReddit and the DoomWorld forums , and have gotten no reply at all yet . Can someone please help me with this?