What is this? FYI, WADs used: DOOM (from the BFG Edition), SIGIL, and SIGIL II.
Aye. So obvious, but not for my small brain, apparently. Thank you!
EDIT: New GZDOOM version is giving me a problem with the aspect ratio and whatnot, showing an ugly green texture around the HUD at the bottom of the screen and slightly altering the AR, but only after I exit the menu. Looks like I am going to have to sacrifice WadSmoosh if it means I get to play a DOOM that doesn't have any weird graphical issues. I'll see if I can find another way to get all of DOOM and the SIGIL WADs to be launched from a single executable.
Worse case scenario, I'll just make an icon for my desktop that just opens the folder.
Hum. Well, I'm sure with some troubleshooting you could probably get the graphical stuff squared away, but if you just want to revert back to GZDOOM 4.7, you can just manually remove the "ForceList" line from the doom_complete.pk3 (rename pk3 to zip, edit the menudef.txt file inside, delete the ForcList line, save and zip it all back up and rename back to pk3)
As for troubleshooting, are you saying the hud is glitching green, or is it just the normal unwanted uglygreen hud? Have you tried typing "screenblocks 11" into the console to get rid of the bottom bar? Or "hud_althud 1" to try the alternative hud? If it's more of a graphic glitch, have you tried changing the render mode or API under Options > set video mode? You could also try deleting your old gzdoom.ini in case there's some old settings in there that are messing up the new app. You'd have to recreate any custom bindings though.