WOW didn't know that Gore was causing this chaos lol
Anyway I noticed a couple of things inside your reports:
1. What are those splash / fluids wads autoloaded within ZDoom? Gore has hundreds of actors and maybe there are some conflicts between something internal which comes out of them
(despite the Blood actor from zdoom.pk3, which is highly used for the gory system on Gore XD)
2. My maps used GL skyboxes defined through
GLDEFS lump plus MAPINFO settings... dunno if it could be another cause of the issue...
3. In case you missed it, there is also a
GitHUB version of Gore and I am
(I was but surely I'll be in the future ) in the way to convert existent maps into UDMF format... Maybe tryin' to see if that fixes the bug here?
In the end I found the problem: try to remove the TENEBRAE.ogg from the music folder or just rename it in order to not load it from the TITLEMAP, because this way I won't get any crashes
(but happens with most recent build of ZDoom if I leave it)