I called the elite desk to change a cancelled res (wish this could be done online). After some delay the friendly agent was able to do it just fine, but the new res (same PNR) is a bit messed up.

I cannot change seats for the 2nd flight.
The aircraft for the 2nd (return: jfk-iah) is listed as a 735, but it's a 73G (reflected in the seat map and in the schedule).
The meal shows "None" but should be "Snack"
The flight duration is blank.

This is an open jaw r/t.