So I spent some time looking through some of these problems that were reported... I ask that from now on, please specify what exactly happened in detail and what you installed in your game before
the 36R, as it has appeared that the 36R is not the cause of these problems, and I don't want people thinking that the 36R is loaded with problems when it isn't. When in doubt, do a clean install, then the OCP (Official Characters Pack), then the 36R.
A second thing I just found out, it seems like while the Sepulchre fix works great, everyone's working just fine there, something still causes issues with the Stygian Abyss section (the actual Mephisto bossfight level). With one combination of characters (Iron Man, Spider-Man, Batman, Superman) only the last character had powers and only some of them worked, while with another combination (Batman, Ghost Rider, Stan Lee) the game just sat on the loading screen and then froze.
My hunch is this is due to the 117 fightmove limit that still exists?
Well, I played as that same team and went to the Sepulchre stage (before the Stygian Abyss) and the game froze at the loading screen. So I have reason to believe that the 117 fightmove limit is indeed the reason. Although I would have to count the fightmoves of each of them to confirm this.
Well, when I talk to Black Widow and Daredevil (maybe a few others I’ll check again and return) it says ‘Talk to Moon Knight’ next to the talk button, not their model if that’s what you thought I meant. This has only happened in the Sanctum though. It does not do this with Nick Fury for some reason.
I checked both areas of the Sanctum Santorum and I didn't see that. They all say "Talk to (the correct character)" and are correct. Something else may be the cause of that. If you've used the 28R or 33R, make sure that both are uninstalled.
Got a problem, I installed the 36 Roster mod, but when I try to open the game, it shows an error notice that says: could not detect the game version, contact the mod creator. Can someone help me, I need to start working on some skins for my mod and I won't be able to test them until I fix this.
I have never seen that error notice before, and you didn't provide details of what you did to your game before the 36R. So, I would suggest a clean install of the game, then OCP (Official Characters Pack). If everything is fine, then
add 36R and see if you still get that notice -- which you shouldn't.