Disappearing buttons (again) and incorrect scoring

I got hit with a double-whammy in GAC today. First, my buttons disappeared during battle, preventing me from winning. I had already defeated three opponent characters, so I let the battle time out. But at the end of battle, it only gave me banners for defeating 2 opponent characters. I am playing on iOS 18.4 on an iPhone 12 Max Pro. GLAT had just done her ultimate, and I followed that with Leila’s ultimate. That’s when the buttons disappeared.