My speculation is that since the patch on mobile devices was delayed, if you pre-purchased a bundle for the next expansion, your account now has 50 or 80 packs for a card set which does not exist, as far as the old version of the game is concerned. That could be what causes it to crash. Hopefully version 13.4 is released very soon on mobile and that resolves the issue.
I don’t see how that could explain issues in Windows though.