Seeing the exact same issue here with a dual-monitor nvidia system. Todd's suggestions don't help in my own case as it appears the window is not actually open in any workspace--the only way to review pending changes seems to be to explicitly quit Update Manager and relaunch it manually.
Seeing the exact same issue here with a dual-monitor nvidia system. Todd's suggestions don't help in my own case as it appears the window is not actually open in any workspace--the only way to review pending changes seems to be to explicitly quit Update Manager and relaunch it manually.