Silver Surfer Black Hole not downing opponent

stef_focus
stef_focus Posts: 111 Tile Toppler

In the Captain Americas challenge node (4* Peggy Carter, 5* Hawkeye, 5* Captain America (first avenger)), I used Silver Surfer, Thor (Mighty Thor), and Shang Chi.

I activated Black Hole and placed the tile in the bottom right corner. When it counted down, it should have downed an enemy, but instead nothing happened, not even damage.