Yes, this is a nuisance. I wish Southwest would fix it.
Its on the list . . .
as well as the problems with changing itineraries.
I can't tell you how many hours of testing went into the new site, but as strange as it may seem - testing in the development area never yields the exact same results as the production website.
We are working through all of these issues as quickly as possible to ensure that southwest.com reamains the Customer friendly site that its always been.