Twice had Ice Magic in hand with at least 4 mana available, and the client did not give me priority before moving to combat. Opponent had Ardyn, the Usurper in play both times, preventing me from putting it on top of their library before the card's combat trigger. I did not get priority during my opponent's turn until Ardyn's trigger was already on the stack. Meaning I was put on the backfoot and ultimately lost the game in a draft because of this issue.

Expected behavior: Gaining priority before moving to combat and being able to cast Ice Magic to bounce Ardyn.