Resurrecting this thread - it's an annoying habit of our Kombi 2+1 and has no logic or pattern. Sometimes it works perfectly, sometimes it's an absolute pain! Last time it happened, it sorted itself out after a journey without that seat being sat in.
It's now jammed without folding/unfolding the seat at all - the van has sat on the drive all week!
GRRR!! - Any inspiration out there for a permanent solution to this annoyance?