Very weird graphics bug in paper mario that stops if I exit and re enter fullscreen

[ghost]

Sometimes In battles or when near objects I can interact with or in dialog something on the screen looks like this: It not only happens for the hud but also shadows and enemies and other stuff. It doesn't happen always but when it happens I can fix it by exiting and re entering fullscreen mode, it doesn't happen windowed at all. Turning on "copy auxiliary color buffer to n64" makes it happen less but it still happens.

[ghost]

I found out it only happens when msaa is turned on

[gonetz]

I found out it only happens when msaa is turned on

Do you use maximum available MSAA level? If so, try to lower the level.