Cannot run program, "located assembly manifest definition does not match the assembly reference"

[IronFoxGaming]

I'm completely unable to run this program. Every time I try to run it, it displays an error for a quarter of a second and closes itself. I've tried running the program normally and in administrator mode, as well as just dragging iso files onto the program to open them, but every single time I just get the same error:

"Unhandled exception. System.IO.FileLoadException: Could not load file or assembly 'System.Windows.Forms, Version=6.0.2.0, Culture=neutral, PublicKeyToken=(Public key number, not sure if I need to censor this or not but better safe than sorry)' . The located assembly's manifest definition does not match the assembly reference. (0x80131040)
File name: 'System.Windows.Forms, Version=6.0.2.0, Culture=neutral, PublicKeyToken=(same key number as before)' , at HSDRawViewer.Program.Main(String[] args)"

Did the program somehow get compiled wrong, or is there something wrong with my computer? I've tried multiple fresh installs of the program and I get the same result with all of them.

[FearJMelee]

I'm on Windows 11, I don't even get an error message it just opens and crashes within a split second. Even while running as administrator.

[MillenniumSSB]

I am also getting this error. Was there a fix found for it?