Reproducing:
On the last pick of pack one, I tried to drag the card into my sideboard. While dragging, the timer ran out. Then, it auto-picked the first pick of pack two without me even being able to look at the cards (I think they flashed for a split second, but it auto-drafted a random card for the P2P1).

I am using Mac

The expectation should be that this only picks last pick of pack one instead of picking the next card for me as well.

No screenshots unfortunately.