Ground Seal did not stop the adventure side of Aquatic Alchemist from targeting an instant in the graveyard
I had Ground Seal in play. The visual effect of graveyards being untargetable showed on both graveyards. The Return Triumphant in my hand was greyed out, despite having creature cards in my graveyard with mana cost 3 or less. My opponent was able to cast Bubble Up to target Freeze in Place in their graveyard. Unfortunately I do not have a screenshot of that happening, but I have attached what I was able to capture. I also attached the log.
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