I finished chapter two when it first came out on my first world no problem. Now on a new world (1.21.5) I had made it to the top of the tower, only to realize that the crow was stuck on some blocks. Only having melee weapons, I was able to hit it once while falling, but the crow was still stuck. I ended up creating a backup, then regenerating the chunk, which seemed to work. However, after defeating the crow, the elevator bugged out and I fell to my death and my stuff had disappeared on respawn. In the end, I loaded my backup, flew to the top in creative, and defeated the crow with the admin blade because I didn't want to do the whole battle again.