Was playing A Draft Event when the game froze. I couldn't play anything, but could still hear the game. Timer wouldn't activate or anything. I had to shut down and restart the game, where I receive an "asset error." Normally I wouldn't mind too much, but I used a premium draft token for the event.
For this issue, please submit at: https://mtgo-support.wizards.com/hc/en-us/requests/new and select 'Reimbursement Request / Report An Issue'.