I have restarted, updated, uninstalled reinstalled, screen goes to the thinking hourglass icon for a second, then right back to the home screen.
Did you follow this remove/reinstall procedure (including STEP 3)?:
1. Highlight channel on home screen.
2. Press * key and choose Remove channel option.
3. IMPORTANT- DON'T SKIP:
From home screen, Settings > System > System restart. This assures no remnant of the old installation remains in the Roku's memory.
4. Reinstall the channel.
5. If channel requires a login, you may need to log in anew.