Weird fake crash with modded game

[captainradish]

I'm having a rather interesting issue that I highly suspect is mod related, but I can't figure out what exactly. I was hoping to see if anybody else had a similar issue.

During my new game I periodically have a "crash" pop up that gives a fatal error (exit code 1119), Failed to compile shader 'shaderdl\high_spec\xu_particles.' Now, if I ignore the window and don't click OK the game doesn't crash and continues on like normal. I can play the game like normal and nothing bad seems to actually happen. This strikes me as strange, of course, but I'm more curious if anybody has any idea why the error is popping up in the first place.