Yes it did. However, I had a few versions that seemed to be installed, 15.2.1 and the previous. So, I took the decision to remove the previous versions, prior to installing 15.2.2. I guess this has upset something.
I had to do the above as disk space was becoming a concern and I run on a laptop.
To hopefully find someone who can help, I can add that the app launches shows up in task manager, but doesn't have a UI. As such pretty much useless.
Thanks in advance.
As a side note, this seems similar to the problem that is shown on YT with a problem with Davinci 14 beta. Except I see no splash screen for Davinci Resolve. All I see is a short spin of the mouse then it stops.