That's ok, didn't know that was a known issue ;) That's indeed a weird one. I'll try to give a look at Mayhem 17's WAD, see if they have any custom entities in there (beyond the custom enemies. But I'll probably play Revoltte on that mappack and keep Resisto for other packs :)
In all cases, with the wave of GZDoom's based paid games that are upcoming I wouldn't mean seeing your visual and gameplay style join the fray !