[GAMEPLAY] Units On My TFT Bench Suddenly Became Enemies

During a ranked TFT match this morning, a Nidalee and Twisted Fate I had on my bench were acting strange. I tried dragging them to the shop to sell, and realized I couldn't. Then I noticed that their health bars had turned from green to red. I tried placing one on my team, only to find the TF throwing cards at my other units once the game started. After that, for the duration of the game, I couldn't do anything aside from rearrange them on my bench, or put them on the field. Any further attempts to sell them were unsuccessful. Unfortunately I couldn't grab any screenshots. I tried placing them on the bench opposite to mine but that did not do anything either.