Wrong tile breaking AI

[humble bridge]

Hi there!
Earlier on this game there was a monster that stood on a tile, аnd I couldn't hurt him.
Action points were used, the hit animation was played, but no effect.
Something wrong goes with that tile.
As you can see, this folks don't do anything.
And i, can pass the turn infinitely.

[steel lintel]

Hi ! Sorry for your issue. Could you also send your Normal, Major and Detailed logs ?
If you launched the game again since the issue, the Old folder will be needed.