I think I know where this is heading but thought I'd check in case anyone else has/had the same problem.
My passenger window's one touch only works going up, not down. Same issue with both window switches, so more than likely not those. Driver's side is all good.
If I hold the switch it also works OK, so not a broken wire either I'm assuming.
I've caked the window rubbers in silicon grease which didn't help, so I'm guessing it's not a friction related issue either.
New window/CL controller?