What version are you using ? Also have you used any CAD commands to change the rotation perhaps ?

If I stretch your steelwork, the ghost members are removed and the rotation/reflect is modified.

I once had problems with an early version of structure using CAD commands to modify member orientation. The user manual has a warning on page 196 cautioning against such workflows.

Do not use the CAD platform commands ROTATE, MIRROR, and 3DROTATE to change the rotation angle of the shape. The rotation angle of the shape can only be set from the Properties panel using Angle.