I just selected Refresh Gem 1 buttong and the notification center (the mana colors with the skull going around the loop) ends up getting stuck in endless looping.
I have had it happen today 4 times, all in PvP and all after selecting Refresh Gem 1.
It doesn’t update the 3 slots, and you can’t do anything other than minimize the app so you can force quit it.
** I wish I could get a screen capture of the Android Mobile… but the instructions for my version don’t seem to work as stated**