Experiencing issues with latest update of ID CC (2017)

I am having strange interface issues with InDesign since the most recent update and wondering if it is just me. I use a PC with Windows 8.1, plenty of processor power and memory and ID ran fine a month ago.

Now, dialog boxes fade in and out of being “live” and it feels like I am chasing a ghost. For example, I start typing to rename a layer, and the box suddenly goes inactive so the text pops back to the old layer name. Same with trying to draw a shape or a line, the tool becomes inactive before I complete the action so my shape or line never gets drawn!

Of course I’m on a huge deadline today and I don’t know what to do.

Anyone else dealing with this or know what to do to fix it? I've tried resetting preferences.