I can't play Oleg trouble

[Kris]

When trying to play the mod Oleg trouble, an error report always pops up. Before it never appeared, which is very strange and I guess the problem is the gzdoom port, not the mod.

[Graf Zahl]

Please post more info. A link to the mod and the actual error message are definitely needed.

[FakeUserName]

Out of morbid curiosity, I found the mod with Google: https://www.moddb.com/mods/oleg-trouble
Warning: it contains copious amounts of bodily fluids, entirely NSFW, among other things.

The error message:
Code: C0000005 (Access Violation - tried to read address 0000000000000000)
Address: 00007ff6d981ac72

I narrowed down the cause to one actor, named "Radio", which uses voxels for its frames.
In the voxels/ folder is a blank lump used as a marker, named "Radio". Removing this lump averts the fatal error. Alternatively, commenting out the states of the Radio actor will also avert the issue. I could only guess the name of the marker lump is causing a conflict with the frame names in the actor's states, but I don't know.

Here is a trimmed example file to reproduce the error: https://edthebat.com/doom/olegbug.pk3

[Graf Zahl]

In that case: duplicate of https://github.com/ZDoom/gzdoom/issues/2488