as you can see here, when i try to load mc 1.15.2 with forge, it somehow.... launches while the preloading is running? and runs as vanilla.
i have tried creating new profiles and repairing. there is no crash, no reports. it just starts loading with forge and then for some reason opens as vanilla.
profile settings
happens whether i have mods installed or not.
ETA: it seems to have fixed itself. guess twitch updated?