New Seatmap on DL.com with Skyteam Flights
 

So the new seatmap is nice, but...
I have an itin in Dec: DCA -ATL - ZRH, return FCO - CDG - ORD. Unlike my other itins, when I use the Choose Your Seats button, the MD-88 diagram comes up, IE shows an error on the page, and the seat grid never appears. Is this because the DL coded, AF ops FCO - CDG - ORD flights (all on Airbus eqp) are in the mix, or is this just a random problem. Anybody know what is going on here? SMS changed seats no problem, but denied knowing the DL.com issue. Flights were booked etix by a TA.
Thanks.