I am flying KL672 YUL - AMS on May 21. I have a J seat selected, but I want to check if window seats come available before departure. But all I get is "seat map not available", on app or desktop. It has been like this for weeks. I can see all other sectors and seats.

I know this often happens close to departure, but not weeks out.

Any idea what is going on with this flight seat map?