2018 Outback window issue

My new-to-me 2018 OB has a confounding issue with the rear passenger
window. I can't open it from either the driver's panel or from the rear
passenger door unless the door is open. When the rear passenger door is
closed, neither driver nor passenger lever works. All other windows open
and close as expected, regardless of door position. FWIW, the window lock
is not engaged, the child safety lock on the rear passenger door is not
engaged (if that could have anything to do with it) and I have had no battery
issues where others have indicated resetting the window switch (apparently
this works only on the front passenger window, according to Subaru techs).
Has anyone else experienced this? Solutions? Thoughts? I'm stymied.