Weird the problems started up again after working once. I don't know why, it only worked once and LZDoom and GZDoom 4.4.1 both work normally. I have explanation for what is wrong at all. There either something strange in your setup that my pc just doesnt like or some other issue. does your mod do any resolution forcing or any aspect ratio forcing? and if so is there a way I can disable it?

Alright I fixed it, it some odd config options in DISMANTLED.INI (the global options) so I just transplanted the global options section from my working lzdoom.ini to DISMANTLED.INI. thus preserving your default keybinds, but transerring my render settings. all is good now.