Old technician observation (and I am older than you claim).
When a suggested solution that is supplied by multiple people does not
work , it usually means:
1) The problem was not described correctly or IN fullness (they missed a side note. ex. the calibre is crashing. when they had installed a 3rd party crash manager)
(we gave a solution for A, but you really have a B)
2a) The user skipped a step
2b) or did them out of order
2c) or misinterpreted an instruction (Oh boy! has that one gotten more than once
)
2d) made a stupid
typo ( believe tweak does now check for (syntactially) valid entries before letting you depart)