@anborn Hello there.
We have the following from a prior post of yours:
Can you give us more info on what version you were running before the update and if you re-enabled the stable repository before this update. And how you disabled it in the first place. We have had a similar report of prior disablement causing issues but the update then worked OK once the repo was re-enabled.
Keep in mind also that we have begun a new testing channel phase: I assume you haven’t inadvertently updated from that as it is know broken and developers only.
Have you tried a command line reboot.
Hope that helps.