The battle freezes when too many dragon skills are performed at the same time, and the battle screen below get dimmed. Before the update, this can be resolved by changing it to “AUTO” mode and change it back off again if you want to fight it manually, but after the update, this wont work. Perhaps they need to fix this. Unfortunately for me, I spent 300 runes tried to pass this stage with got stuck in 4/4 stage and force me to flee!
I’m getting it too and it’s getting really annoying. Only option is to flee and waste your energy. Happens several times a day in both quests and the main explore. Contacted support and got silence back. Oh, and I still don’t have my toothless trust either.
