Trial of chaos

Basically the problem is the cpu at 100% that I can manage through third-party software to kill the game and restart it in case of freeze, but I wanted to point out that in the case of the temple of chaos it happens:
- I insert the key
- I click open
- I access the trial
- the loading starts
- the game freezes
- I kill the game
- I restart the game
- I find myself with the door closed and the key disappeared.

I burned the only 3 keys (number of trials: 10) that I had
-.-