Well this is a new one on me. Part way through a battle it says ‘reconnecting then tells me I don’t have enough energy and throws me out. The battle stats say 0 trophies and 0 medals and that it happened 18261 days ago! Luckily I didn’t’t have a full win streak, but I was chasing ‘win 5 battles’. Now I have to wait ages for the energy to regenerate.
Just looked again at the battles and this one has disappeared. I did take a screenshot so have proof,