It is only me or it is happenning to someone else? I get the Something went wrong screen after every match in Training grounds, just after getting the ribbon when returning to Training grounds screen.
Perhaps an update is coming or someone is playing with the server/database.
I’ve been getting the error all day today, can’t claim about 1/4 of my event wins. Maybe there is an update on the horizon? This seems to happen a lot before an update.