I have experienced this several times, on two different computers. In my case I had less cards than my opponent, the ability triggered and showed on the right side of the screen but then wouldn't go away and didn't show any cards I could cast. Any future spells on the stack would show up under the robber of the rich graphic.
I believe the amount of cards in opponents exile went up by one, but I couldn't view whatever card it was. In the most recent case, the opponents deck was a black/blue/green lucky clover deck.
I have experienced this several times, on two different computers. In my case I had less cards than my opponent, the ability triggered and showed on the right side of the screen but then wouldn't go away and didn't show any cards I could cast. Any future spells on the stack would show up under the robber of the rich graphic.
I believe the amount of cards in opponents exile went up by one, but I couldn't view whatever card it was. In the most recent case, the opponents deck was a black/blue/green lucky clover deck.