Polymost: After quitting to title, ANM cutscenes will have strange artifacts on them
This does not happen with Classic or Polymer, and doesn't happen with IVF cutscenes either.
If you start a game with the Polymost renderer active, then quit to title, and the start a game in Episode 4, you will get the following artifacts on the ANM cutscenes:
Started with 75290ed3, which is however just a fix for an obvious mistake.
Therefore, the actual start of the issue stems from commit b6740a7b.