Traumatize soft-lock

Asylamb

I've been trying to play the Tour de Ravnica event, using my go-to Legacy deck - OmniHulk. One of the cards in that deck is Traumatize (From the Vault spell). I've never had a problem with that card before, but now the game soft-locks whenever I cast that spell. The gameplay freezes (can't open hand or PW menu), then after some time I see the loop timer (but no notification to end the loop), and I can't do anything.
The soft-lock is consistent, I had it happen 4 times, always on the Traumatize cast.