Yeah it's unfortunate. I did eventually get through the whole thing. Buttttttt, it only worked if I fast forward skipped everything (Which is extra odd cause normally that breaks things)
It seemed to only happen otherwise when the scene would transition to a cg scene, or to a different "area" (like a change of background). I tried reinstalling it and nothing changed.
Not sure what the issue could be. But from what I did experience in the game. It looks pretty good, and I hope to see more.