When I started my Crescent2 game this morning, I got a message there was an update available. Went to Windows Store, and found it had JUST updated (downdated ???) back to 6.21.
So I updated back to 6.22, and found I had lost all my progress in the event. 

Luckily I had made a backup just before going to bed last night, and was able to restore to my current game progress. I think I would not have been a happy camper if I had to start the event all over again.
Needless to say, I turned off automatic updates in the windows store.
Needless to say, I turned off automatic updates in the windows store.