odd crashes with specific iwad + mod combination

[staticanimal]

crash occurs seemingly at total random. mostly worked fine throughout the first two episodes of ultimate doom, became more prevalent in map 4 of episode 3. not sure where specifically to post about this issue.
it might be important to note that i'm launching the game through a deck oriented doom launcher called "GZDeck"

platform: SteamOS 3.5.7
gzdoom flatpak version: g4.11.3-m
iwad: doomu.wad
loaded mods: voxel doom [cheello_voxels.zip]

screenshot of crash attached below

[Eonfge]

Sorry for not commenting any earlier. I have no clue. Perhaps you can ask the Mod developers or the team behind GZDoom directly.