I am having the same issue. I completed Spark ranked tiers and now only have access to Jump In!, Starter Deck Duel, and Alchemy Ranked via the home page. In the "Play" blade, in the following tabs I have access to: Events - Jump In!, Starter Deck Duel, Color Challenge; Find Match: Alchemy Ranked (Bo1, Bo3), Alchemy Play, and Bot Match.
I am having the same issue. I completed Spark ranked tiers and now only have access to Jump In!, Starter Deck Duel, and Alchemy Ranked via the home page. In the "Play" blade, in the following tabs I have access to: Events - Jump In!, Starter Deck Duel, Color Challenge; Find Match: Alchemy Ranked (Bo1, Bo3), Alchemy Play, and Bot Match.