Duct Connectors not Inserting square to end of AHU ...why not?

[mrgrotey]

Hi there,

I have a frustrating problem,  Inserting a duct connector onto the flange connector on my simple ahu model means it goes in at a random angle rather than square to the face. 

- The working plane I am working with is square so its not that.

- The flange connector is a direct copy of the one on the other end adn that one works fine.

- This error happens whether I copy the original, mirror it or copy-and-paste it.

- Duct connectors attach in the right orientation on both sides of the original connector, but the wrong orientation on both sides of the copy.

I cant just rotate te connector back as there is not rotation value associated with duct connectors that I can find therefore it would only be 'by eye' which isnt good enough.  You can snap to the connectors either.

What am I doing wrong here?

I am rather a novice on Revit but I cannot find any reason for it doing this.

Got any ideas?

[Mehdi.Kardehi]

Hi

Check see whether the duct connector being rotated in the family.

If that's not the issue..plz upload the family here to have a quick look 

Cheers,

Mehdi