Turning model into object messes up the materials

[leka_mer]

Hi! 

I'm trying to make my model an object and save the object as a Datasmith file. However I'm running into a problem where the materials I have chosen in the model turn haphazardly into whatever in the object. That in turn makes editing in visual software impossible.

E. g. 
My window are glass in the model, but turn orange in the object. Also a stone foundation in the model turns into the same orange for some reason. = In the visual software my foundation is glass or my windows are stone.

Operating system used: Windows

[Lingwisyer]

There is no need to convert your model into an object... just install the Twinmotion Livesync or Unreal Engine plugin and you'll get the option to save out as .udatasmith

https://www.twinmotion.com/en-US/plugins/archicad

Ling.

[leka_mer]

Yes, in a way there isn't a need if I was just doing this one building in the visual software but we're making quite a big model though so turning my model into an object is a need to keep the size of the entirety manageable.

[Laszlo Nagy]

You could try first converting your model into Morphs, which will hopefully preserve all Surfaces, and then convert those Morphs into a single Library Part. It is an additional step, but in this specific case, it might result in those correct Surfaces you are trying to achieve.