Game hangs after reconnect. Cannot continue play on any platform

I was playing the last solo adventure. Last boss on a chapter. I lost internet connection.

Later on, after re-connecting and opening Hearthstone, the application correctly resumed the game I was on.

Unfortunately, the game 100% hangs (except for cursor) after performing exactly 1 action. Whatever that action is: attacking with 1 minion, hero power, playing a spell. After a hang, if I close the and re-open app, the game once again resumes and correctly detects the last action before the hang. For example, if I play a discover spell, the game hangs before seeing the options; when I re-connect I do see the options, but it hangs again after selecting one. PAINFUL.

I can reproduce this 100% of the times on both iOS & Windows. Unfortunately this means that I cannot longer use Hearthstone on any platform because I’m stuck on that game that hangs ater 1 action. Send help.