Front-End Bug? Champion Store Was Blocked

The Champion Store was blocked by "sell for 3g". Thus, I couldn't buy units or experience.

Run down: After the first mid-game carousel, I sold an Evelyn. After selling her, I gained the item and gold as usual. However, the "Sell for 3g" menu continued covering the store. I waited a couple rounds to see if it would reset when the store changes automatically at the beginning of the round, but it did not. I had to exit the game and rejoin in order to gain access to the shop again.

Specifics: Evelyn was holding a Needlessly Large Rod. She was in the third slot from the left. I only had 3 champions on my roster and 4 in the field. Not sure if any of this helps at all.

I think it was a front-end bug with the modal for "Sell for xg" not disappearing properly. I was surprised that waiting for the champions to change in the store didn't reset it.