Google Play Movies not working
About a week ago movies stopped playing. I get "There was an error. If the problem persists, try restarting the device." Obviously restarting doesn't help. So I tried factory reset. At first it worked -- and oddly, the movie interface looked different... until I launched Cortex, then the interface went back to how it was before the reset, and movies stopped working again!
I figured out a way to fix this... just uninstall updates to the Google Play Movies app. I guess apps update automatically so where I said the interface changed, it had nothing to do with Cortex but was an auto-update to Google apps.