Since the latest update I have some strange video problems. 
When I open the synth rack dock itb and close it again, I can't see the rack after opening the second time.
Also my window clock has disappeared.
 
Does some one else has also some video problems?

Yes. I had some strange issues with video as well so I rolled back. I hope there's a fix coming soon.
 
Update:
The video engine seems stiff even after rolling back to 10/2016. I've frozen all the synth tracks in my sound design project and the CPU meter hardly shows anything. Pressing play takes 1-2 secs. This may not sound like a huge problem but it's really annoying when you are making shuttle changes and need to press play rapidly.
 
Update 2:
Clip effect just reseted itself. I was using Guitar Rig 5 Digital Lo-Fi module on a clip and suddenly it reseted all the parameters to 0. 

Hi JoeHans
 
Are you using U-HE plugins
 

Only Native Instruments plug-ins and Little Alterboy by Soundtoys.