Definitely send this to customer support.
#Rumble Glitching and making me loose rounds without playinh
vale wyvern
warped hornet
Do you have a bot thing set? I've seen the same behaviour from people that left a command to auto something else and when they're happening at the same time you play a card and it does that exact same thing and then exits to the other screen and assigns you a loss in rumble/siege/whatever you were manually playing. You also went from 20 energy to 34, is everything turned off? Try playing out all your adventure and arena energy it should not interrupt if there is no energy?