They're not pinned and audit didn't change anything.
These are labels for a data referenced network. The labels work fine in the source drawing. (I audited both the source and destination drawings).
The only thing I can think of that I did different from other networks created on the same day was I forgot to set a reference surface. The other network labels work fine.
It's a very small network - 2 structures and one pipe, so I deleted and recreated with no luck.
Looks like the problem is with the one destination drawing: I can datareference the problem network into another drawing and they work fine there. I may end up recreating the drawing as it's not very far along.
I would do the same. Something is wacky in that file. You should be able to drag data ref's labels w/o issue.
I do this also on very small projects (single family homes, small rehab) so I don't have to label a design twice (design file and sheet file). I keep the entire design (srf, pipe nets, alig, profile, etc) in one file with labels and xref it into a sheet. I would not recommend this on a typical project though (commercial/industrial site plan, subdivision, etc).
Can I ask what version you are using? We have not been able to import source labels at all when creating references.