Existing itinerary has been through several schedule changes.

Purchased economy, upgraded every leg with GPU.

First leg now went from CR7 to ER145. So, lost my First Class seat (Fare Code R) and it is now showing Fare Code X....which I understand to mean an award ticketed seat.

The rest of the legs are accurate (R).

Is this going to cause any problems and / or should I call to get it straightened out now?