i run a first sliver deck in brawl occasionally that finds monstrous vortex then proceeds to discover the entire decks 5costs usually leading to a win through mass haste or terror of the peaks. since the last patch that happened when monstrous vortex discovers rootwire amalgam it bugs out and doesnt bring up the context to choose which side of the card to cast leading to being forced to push it to hand by clicking the 1 button available and end the discover chaining. this has happened to me a couple times now and has prevented wins due to it.

steps to reproduce:
have monstrous vortex on the field
cast a 5+ power creature
discover rootwire amalgam
be unable to cast either side even though both qualify

how used to/should work
have vortex > cast creature > discover amalgam > cast 5power side > continue discovering the deck.