The Bug:
So I’ve been trying to make a deck for each companion in brawl. While I was making them I tried testing them in a game, but the companion did not appear in the companion zone as it usually would. I thought at first this was maybe just because I had built the deck wrong and had broken the rule for my companion, but when I tried my Lurrus deck which had previously been working fine, as well as my umori deck which I confirmed only had creatures, the cards still will not appear in the companion zone giving me no way to access them. I should note I did select them as my companion during deck building, I did not put them into main deck.

Platform:
This occured on IOS

Expected result: After mulligans, companion appears to the right of the hand in the companion zone

Actual result: Companions do not appear at all