Generally, if you encounter an issue with the upgrade from the UI, use the console; that’s the way to go!
Discourse is updated daily, and some changes can happen that require a full container rebuild.
As a side note, there is a Rake task maxminddb:refresh to test/download the MaxMind DB files directly (or maxminddb:get to ignore last downloaded date check and backup) :
./launcher enter app
rake maxminddb:refresh
quit