After accepting the OTA, I found that I had "lost" Nova launcher. Not really, it was still there and I could go to it, but no matter what my settings were, when returning home from an app, message or phone call, it would go back to the Sense launcher. In other words, even when setting Nova as the default launcher, this setting would not "stick."
At first I tried deleting Nova and reinstalling (mistake as, despite the backup function which worked fine for apps and folders on the home screens, it was not able to restore widgets so had to manually redo all of those) Unfortunately , that did not help.
Then it dawned on my that perhaps the problem was the "Home Switcher" app that I had installed for the rare times I wanted to go back to the stock Sense launcher. Deleted that and - presto! - I could now set Nova as the default launcher again and it sticks.
Have not yet reloaded Home Switcher yet, but I will to see if it works again of if it still has issues
At first I tried deleting Nova and reinstalling (mistake as, despite the backup function which worked fine for apps and folders on the home screens, it was not able to restore widgets so had to manually redo all of those) Unfortunately , that did not help.
Then it dawned on my that perhaps the problem was the "Home Switcher" app that I had installed for the rare times I wanted to go back to the stock Sense launcher. Deleted that and - presto! - I could now set Nova as the default launcher again and it sticks.
Have not yet reloaded Home Switcher yet, but I will to see if it works again of if it still has issues