I've had to clear cache on Google Play and cache+data on Thronebreaker, uninstalling the app totally, restarting my phone, redownloading the full app and data (~4.5gb), then getting hung for 24 hrs on the language pack downloading halfway.

Does this app pull data from GOG or Google Play Store servers? I've tried restarting after a hangup without clearing the cache+data and it will return to the same hangup screen and same progress bar numbers, but just never resumes downloading.