I have an intermittent issue with blender (2.79 and 2.8) which I am trying to resolve.
Sometimes the software works like a charm – no issues.
Sometimes, the main view port is fine, however left clicks do not register in outliner, cannot select or expand a selection. All clicks vanish - main window of open file or import (left hand menu panel still works, just the main file select panel fails).
Sometimes, so far only in 2.8, left clicks do not register in main view port when selecting items in object mode, or when selecting points/edges/faces in edit mode. Pressing C for circle select, and left clicking works for selection, using handles to drag points once selected works as expected.
I am assuming it's related to something else running on my machine. Reboot seems to work sometimes, and I am a bit at a loss as to what would be causing it. I have tried closing all JVM and screen overlay software, and a lot of other services, however found no clean "fix" for the issue.
Any ideas appreciated.