My 69 plate T6.1 had the same issue. Something to do with a current recall on Bowden cables apparently. The door lock doesn’t re-engage the Bowden cable to the inner lock when coming out of safe lock. (Safe lock disengages the inner handle to prevent someone putting a wire in to hook the handle) Stealer did a warranty repair but says the recall is still awaiting some “special” grease from VW and will have to go back in at some point?