Hey everyone! Thanks for the reports this morning. It seems a few players were affected by a bug introduced after my patch yesterday (to unlock the Custom Adventure) that resulted in their tower level being reset back to 0. I have fixed this issue and, to remedy any lost playtime, any players who were potentially affected will be automatically promoted up to level 9.
I take data/progress loss very seriously, so please do reach via the in-game "Share Feedback" mechanism if you weren't able to recover your progress with this fix and I'll be happy to support you.
Much appreciated,
~Ross