Pretty sure this is a website glitch and it affects paid BA tickets as well. I have one booked months ago and I selected seats online months ago. The flight is coming up and I went to look at seats options and the whole map appears reserved. My first thought was what kind of wicked overbooking was that! But if I go in as if to make a new reservation, there and plenty of seats available.

I called and the agent was willing to change my seats without a charge, but was uninterested in the website issue.

I was was hoping that it might resolve itself at 24 hours, but, from the reports here, it appears not. I want to switch to MCE at 24 hours, so it looks like I’m going to have to call. I’m not enthusiastic about this as I already was told when I called that I would have to pay for MCE, as OW Ruby, even within 24 hours, so it’s probably going to be yet another adventure with customer service.