[2022] Windows Store: "We are unable to verify ownership of this DLC" when I own and have installed all DLC.

We are working with MS on this, it seems to be a problem at their end.

Probably best if you lodge a support ticket with us at paradox.zendesk.com so you get more detail.

Good luck!  

I still see cases of it coming through, I'm afraid. Only a trickle but a constant one, it's really odd.

Did you lodge that ticket I suggested? If not please do so.