I am currently having an issue with the latest update 1.7.21 - actually this is a recurring issue.
With the version before 1.7.21 everything worked fine but before that one I had the same behavior.
As you can see in the photo attached, images are not loading up - no matter what I do in the Android TV app.
Tried deleting cache, reinstalling, changing themes, etc. but nothing helps.
This only happens on the first login after power up.
I did find a workaround, as soon as I manually restart my server and login again to the Android TV app everything works fine.
Haven't found anyone else with this issue, any idea what the issue could be?