I was playing in explore and right after I got 60 event points which I collected 3 Event keys, then I went to Chests to collect the prize that’s when I’ve noticed that I’ve lost 400 Gems. Just like that! I tried to log off and log back it didn’t help.
Approximate time 5:05 PM pacific
Thank you for your time!
Are you not forgetting about your purchases on the Invasion Shop by chance? Just to be sure.