Indeed but you are the one who claimed it was not a hard problem.

I don't think any one of us pushing back here on those claims do so for the heck of NOT finding a "solution", rather genuinely asking because so far it seems nobody did find such a solution without compromises that is in the end not worth it due to the flaw in said solution.

The point isn't to be critical of your process, only of the claim that it's a trivial problem.