I am a long term, fairly high-level LR user who has been using it since version 3, maybe earlier.
Most of my use has been on a Mac but I recently returned to a PC for more power.
Dell XPS 8910
Windows 10 home
Core i7-6700 @3.40GHz
On board graphics Intel HD 530
NVIDIA GeForce GTX 960 (2MB)
I operate on a monitor at normal HD 1080P, no higher
Lightroom and its catalog are on SSD, Raw files on normal disk
I'm having glitches galore.
I have more than one crash a day.
Sometimes if I click on a dialog or a button the software freezes, then my windows cycles between a static LR screen and the last window I had open, as if Alt and Tab were held down but vvveeerrrrryyy slowly.
I regularly have glitches when importing or publishing where it reports than some files were not imported/exported/dealt with (but not why)
I get issues like the attached screenshot.
I only have two active plugins, the ones I use daily, they are both up to date and don't seem to cause problems.
I have tried switching off GPU support which didn't make any difference that I could detect and I have had crashes since.
Camera Raw cache is set to 30GB
Any suggestions gratefully received. I am a photojournalist and can't go on like this so will change software if I have to.