There was a patch today with the following changes:
Main game:
- Fixed codex description on Axe of the Black Labyrinth
- Fixed FATAL ERROR on quitting game with RT enabled
Black Labyrinth:
- Removed 'continue' option in main menu if you haven't played the BL yet
- Made hard difficulty path a little easier to see
- Lowered Boss Bomb explosion radius
- Lowered Labyrinth Knights HP slightly
- Fixed Voidsplitter not 1-hitting Labyrinth Knights
- Fixed Thunder Spirit getting stuck sometimes
- Fixed Extra planet that would show up when swapping weapon sets
- Fixed destructible wall save bugs in all levels
- Fixed big door in 'the wall' that would sometimes close on the player
- Fixed gold key door in 'the wall' that would sometimes permanently lock
- Fixed moving spikes not saving in 'the hole'
- Fixed water slide effects not saving properly in 'the hole'
- Fixed falling pillars in 'the chamber'
- Fixed many out of bounds areas
https://store.steampowered.com/bundle/34227/AMID_EVIL__CHAMPION_EDITION/