Just tried to assign our seats for myself, the wife and her parents for next year ATL-IST-TXL. Couldn't assign the in-laws 2D/2G as it still doesn't show up on the app or on the computer.

Called and was told by the rep that rows 2/4/6 only have 3 seats. Twitter DM useless as well.

Couldn't add our passport info either as I booked through an OTA and the website won't allow me to input it.

I guess I'll have them do it at the airport when we head to Lisbon on NYE.

Very frustrating.

Update:

Me: (Twitter DM)
But it is not accurate (talking about the seatmap), the B787 map has been incorrect since it was loaded in your system. I have flown this flight 2 times now and there are 4 seats across in rows 2 4 and 6. It is a known error that is discussed widely on the internet but no one seems to want to fix it so seats can be selected. Thank you anyway.

Them: We have forwarded the matter to our dedicated unit and after necessary checks,we're informed that the information given by our call center is accurate. Unfortunately, there are only 3 seats in row 2. Please choose another seat so that we can assist you better. Take care.