When I have one or more disguised creatures on the board and Electrodominance in hand, the game soft locks during Greg’s turn. I think when the cloak triggers, it tries to drain mana from Electrodominance, which is not possible due to the Stored Mana ability. I can reproduce this bug over and over again.
Edit: this bug may probably also exist with other cards with Stored Mana or cards where mana can’t be drained from.
I am now convinced it is also related to the soft locks my team mates are experiencing in the RotGP event where Webcore decided to add creatures with Ward. Having a BSZ or an Electrodominance in hand just locks the game.