Puzzles turned invisibles

[LadySuzanne]

This issue with ‘ghost’ heroes is a known issue:

[SOLVED] Enemies Turning Invisible (with Counter Attack & Self-Healing)

I attacked someone and kill all heroes but when arena was empty I still was able to move puzzles and I was defeated!! I won this raid but game show me loss… is it bug of new versions or smth???

Not sure about the invisible tiles.