Using Special K in combination with Reloaded II mod loader with Steam hook mod enabled and Persona 4 mod loader will trigger the ! warning and close the game

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If I had to guess, you appear to be out of memory. The game really needs a 64-bit build :frowning:

The code in question is C#, neither the base game, nor any code that I would ever willingly touch is written in C#. So that leaves only those other 2 things you mentioned, one of them is written in C# (ick!).