Yet another broken puzzle position.

This one is 35529. Several times I have encountered "puzzles" where the continuation after cracking the key involves an essentially meaningless move that nevertheless can fail the puzzle. This one is the second case I have found where the failing move, although by human positional and tactical evaluation appear even, actually turns out to be the better move if one goes three moves deeper with best play according to engine evaluation.

I've commented in this forum, and have sent email feedback. It appears it's just talking to the wind. Does anyone in the administration care about fixing these errors? I want to play puzzles that are increasingly difficult, not increasingly randomly broken. Is there an avenue for users to offer assistance?

I've moved on to the HARD category. I suppose it's just natural that problems with flawed solutions will filter up to the top of their category, due to valid and sometimes best moves failing. It would be nice to know if anyone on the staff is listening. Eh.