Not sure if this is the right thread, so moderators please feel free to move it.

In the next few months I have a few itineraries purchased that involve segments on LH.

Because I purchased the flights before the changeover on united.com, I still have the LH record locators (new site doesn't show them anymore...bummer). A few days after the changeover, all my reservations showed up normally on LH's site. After checking today, some segments are missing in one of my itineraries.

Should I be worried? I once had a United segment dissappear when I viewed my reservation on LH's site, and LH couldn't check me into that flight on departure day, had to sort things out in FRA. But in this case, the LH segments are missing.