Hi,
Was booked by travel agency from ARN to HEL using Finnair and HEL to NRT using JAL 414 flight.

Looking at the JAL international page where I can see reservation information I could also look at the seat assignment map.

Apparently there are only a few seats in the middle row left to select.

Looked at the Expertflyer.com site, apparently a whole row of seats is available according to them but not visible on JAL. How come I cannot select these seats on JAL?

Should note that the two legs are on the same issued ticket, but with two different ref.numbers.