I am the only one this happening to? I sideloaded Zattoo Tv... the app is geoblocked and i am using a smartdns to access the channels...i am able to install the apps and watch the channel...but once I am done, the app keep being removed from my shield tv box...
You may need to create a leanback launcher with the tv app repo app off the play store and add this to your favourites on your shield tv
Apparently a bug if your language isn't set as German or Swiss German. Supposedly they're working on it but the app currently needs to be reactivated constantly.
I have a similar setup (Zattoo tv Switzerland through a smartdns service) and it works perfectly on the MiBox. It even integrates into the Live Channels app, so there's no need to launch the app anymore. are you sure you are sideloading the right version?