I can't block a Xiangqi Horse's check in Tinyhouse!

I wanted to place my pawn or ferz on the f7 square, blocking the check of the xiangqi horse on f8, but the site didn't let me, so I lost the game in the next move. I wonder why that is. Could you please help me? If you find that my complaint is justified, please give me back my lost rating.

Hmm. That's weird.

Please post this in the Variants club in the Bug Reports thread:

https://www.chess.com/clubs/forum/view/bug-reports-10