I was in the middle of battling the boss croc at the pond just northwest of the Sentinels (and I was winning) .
The croc was down to about 1/2 health and was setting up to take another leap at me when I tried to perform a dodge (roll back), but instead hit the “Windows” key instead.
My screen went black with my mouse cursor hung up near the top center of the screen.
No other function was possible and I was forced to shut the power off of the PC.
Please look into this and see if this can be duplicated.