I'm having multiple playback errors that just suddenly started at once:

First, every turn in the piece stopped playing. I get the note that it's supposed to be on, but the turn itself never plays.

The turns worked just fine when they were first added, but then they simply stopped. I've tried clearing the articulations and readding them, but it even affects NEW articulations.

Second, I have multiple places where the playback simply cuts out entirely for individual instruments. There's no expressions, articulations, or anything else on the notes in question, but the affected notes are always the same ones.

Finally, the layer three note here:

Has NEVER played. I've already made sure that Layer 3 is set to playback, but this has never worked.