Trial of the Sekhemas and Rhoa bug

I was doing trials and got to a room with the "survive until time runs out" hourglass. Using this dismounts you. However, afterwards, I could not remount at all and the Rhoa was stuck on the switch. Whenever I moved, the screen just jerked violently all over the place.

Started next room. Rhoa was at beginning with me but I STILL could not mount it. Turned off spirit thing for Rhoa, back on, working again.

P.S. - Also, how about adding a couple of seconds time between finishing the lever animation and the enemies appearing as I have actually been killed in this moment mid-mount attempt.