Ceiling grid in IFC moves randomly

[ida 6]

Hi,

 

Exporting ceiling grid to IFC and it moves randomly in the export, some don't move and others move what seems to be no particular distance from where they originally were. Any others experience the same issue? VW 2018 SP 6 on Mac OS High Sierra 10.13.6

[ida 6]

Found a work around, that is not obviously logical.

Tried the old trick, cut, paste, but that did not work.

But I flipped the ceiling grid and moved it back in place, and that worked, interesting.....