I'm also getting the same/similar problem...
can't seem to find an answer that works though.
When i use the label tool to "Label Elements" (checking the box under the object ID) it places an independent label correctly.
I want to use an independent label rather than any other kind of object-specific label, as it suits my drawing.
However, when I adjust the leader to suit the desired position of the label text, then close the section window (I'm labelling beams cut in section) and then re-open it, the label text has "flipped" to the opposite side (per attached screen grab)
Moving the "elbow" of the label tends to alternately flip the text back and forth each time it's adjusted. Frustrating to say the least.
Any clues on a fix??
ArchiCAD 24 (build 5004)
MacBook Pro (16-inch, 2021) Apple M1 Pro 32GB RAM | MacOS 12.0.1
Melbourne, Australia