I cast Auron's Inspiration during my first main phase, which did nothing because I misunderstood that it only applied to attacking creatures. During combat on the same turn, after declaring attackers, I had enough mana to cast it for the Flashback cost and the expected behaviour occurred. After this however, the UI element of the spell on the stack persisted for the rest of the game. It did not impede game actions. My opponent did seem to opt not to resolve spells or triggers, but I don't know if they were prevented by this issue.

Platform: Windows
Version: 2025.50.4.9422.1169759