Disappearing LH upgrade
Just used miles to upgrade an LH flight from FRA to PHL. As soon as I used the miles on the united site I saw the miles get deducted, but then something strange happened. The FRA-PHL segment disappeared from the UA website when looking at my confirmation. I went to the LH website and I see that the FRA to PHL is in Business and still there. Anything I should be worried about?