When exporting to max via FBX things go missing!

[davebnr]

When exporting to max via FBX elements go missing!

I have exported a model from Revit09 via FBX, this has then been sent to another company who opened it up in Max09 to find window transoms and random polygons missing (see attached). I have therefore been into the families and checked all the working components etc at this end and all seems good with regards to the extrusions and their parameters.

So what is the problem, any ideas? Is it the materials settings, do I need to redraw the elements that have gone missing? FYI the import of the FBX file in MAX has been done using the standard revit preset.

Any help or advice would be much appreciated.

[niki_funky]

Check if faces are not missing, but flipped.

best regards

[davebnr]

Revit model with relevant windows and walls for people to have a look at, a number of suggestions would indicate Max is flipping the information and loosing it in the process, I would be greatful if people could have a look as I would like to seek a Revit solution where possible.