Dungeon 4 - dying and killing the boss at the same time breaks progression permenantly

[SirGouki]

I died while killing the angler and when I went back and killed the angler, if I go in again and pick up the instrument, I get stuck in a repeating loop of it playing the teleport noise after the music plays but no teleport happens.

I'm not 100% certain what caused this, but I'll be digging into the code to try to fix it after I get some sleep. I suspect it has something to do with how the game is checking if a boss is beaten (since I killed the boss twice, it toggled back to false but didn't reset the door?). I'll check to see if it happens with other bosses as well.

Edit: my suspicions were incorrect. It looks like some bosses are properly set to remove their collision while quite a few are not.

[SirGouki]

This appears to be a partial duplicate of #3
sorry. I'll search better next time. I'll close after I'm done with it as I'm mainly using it as a reminder to look in to this.