Originally Posted by Techtravler

Last week I had a flight from JAX-DFW, I was # 1 on the upgrade list. I asked the gate agent how it was looking and he said there was one seat available, but it may not be released due to weights and balances. Which is fine with me, but after boarding a crew member boarded sat in the back, which was then brought up to the one first class seat before we pulled away from the gate.