No damage to the first boss Belo'ren as monk

Does anyone else has the same issue? Since i was in the raid with my monk i have problems with rolling. In most cases i roll on the same place and the dash only works sometimes, mostly at the start of a key.

I already tried to set the graphics to 1 and turn off the sounds. I got a 4090 RTX and there was no problem on this boss yesterday.