Originally Posted by
Grog
I'm experiencing similar. Already assigned a seat, but want to change it. LH.com is not allowing it. Ticket is issued, of course. Will be interesting to hear more from OP.
Something is broken. I managed to get seat selection by logging into miles & more, adding the booking and then choosing seat selection - which redirected me back to LH.com with the 'Edit seats' option now visible.