in reply to Re: XY Problem
in thread XY Problem

Then there is the (thankfully rare) "my problem is X. I've tried Y." then the respondent gives a perfect solution to an entirely different problem.

I'm revising this thread to check whether a particular XY* problem may be here, and if not, then possibly add it: I noticed your entry and it occurs to me that it may be described as an XYℵ problem!