When rendering 3D view some furniture are missing

[RICHADLR5UM]

Hi all,

Thank you for taking the time to read and hopefully respond to my post. I am working in IT and we recently upgraded all engineers to Revit 2025. 

I just came across a problem I cant overcome. I am not expert at Revit by any means to please take it easy on me.  

The issue:

When the 3D view is being rendered, the room of the 3D view will be rendered but only the desks will be missing. The engineer who is very knowledgeable tried many different "fixes" and nothing has changed. 

I may be asking for a lot but could someone please give me some pointers or hints on what could be causing for some furniture (which are part of the library and not imported) to simply not show up on the render?

The previous render of an early 3D view executed perfectly. Its only this one that is causing these issues and of course the deadline is approaching fast.

As an IT guy its not really an area of my responsibility but I want to help where I can. So please someone help me (us) out?

Any information will be highly valuable. 

kind regards,

Richad Maoujoud

[arq_42]

I once encountered a similar issue, even with families from the default Revit library: Families with 3D and 2D modeling, which were not visible in 3D or were not exported when rendering.

All these families had in common that the 3D part was an import from a dxf file. When we tried to generate the 3D geometry with the Revit tools, it was solved.

It has also happened with families imported from other apps (3dMax, Sketchup...), which had the surface normal pointing the wrong way.

I don't know if this is your problem, but I hope it helps you find the way to the solution.

[RDAOU]

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@RICHADLR5UM wrote:

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The previous render of an early 3D view executed perfectly. Its only this one that is causing these issues and of course the deadline is approaching fast.

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@RICHADLR5UM 

To rule out a faulty view, did they try to recreate the view and render it? or render those pieces of furniture in a blank new project?

Then comes the second question, where are you rendering those views? Certain redering engins may have certain limitations when rendering certain Elements as well as certain assets. If it fails to process such elements, they would simply be ignored. 

• Are they using Revit's built in render engine?
• Are they using Cloud Rendering?
• or are they using an extension such as Enscape or Twinmotion?

Comparing the 2 Views; what is/are the difference(s) between them. If the families going invisible in the new view were not in the previous render then you know it is an issue with the family.

If it is a family issue, upload that family here and let someone check it out for you to see if it is fixable

[mhiserZFHXS]

This may seem like a dumb question, but are the elements visible in the 3D view itself?