Is this some inside joke? This happens almost all the time!
I mean, it's ok that a warning comes a few hours before the forced restart, but people tend to forget that.
And just so you know: the system always waits until we start the battle in GAC, and only then informs that "client must be restarted". And then there is nothing you can do.
And this means that the battle counts as a loss, the sent team cannot be reused, and the defending team is otherwise intact and undamaged.
So why is the forced update always happens in the offensive phase? Why not during the defense setling phase? Or after the GAC? Then it wouldn't bother anyone!