I guess adding mods had gasp Unforseen Consequences. Have you tried to do a clean install? Cause it is not clear what is the state of your game files right now.
I managed to get it working and I think it had to do with the black mesa character expansion mod and for whatever reason it came with copies of the original files from the game that conflict with that mod so getting rid of them seems to have worked and I can load the level now
Sometimes even removing a mod could still leave some files behind in your HL directory. Unless you know exactly which files those are it's easiest just to delete the entire game folder and reinstall the game clean.
I guess adding mods had gasp Unforseen Consequences. Have you tried to do a clean install? Cause it is not clear what is the state of your game files right now.
I managed to get it working and I think it had to do with the black mesa character expansion mod and for whatever reason it came with copies of the original files from the game that conflict with that mod so getting rid of them seems to have worked and I can load the level now
Sometimes even removing a mod could still leave some files behind in your HL directory. Unless you know exactly which files those are it's easiest just to delete the entire game folder and reinstall the game clean.
Man was not ready for unforseen consequences