IFC Files display differently in APS Viewer vs Autodesk Viewer

[app-management]

Hello,
We have various IFC models that were created using Revit.
Unfortunately, parts of them are displayed differently in the APS Viewer than under viewer.autodesk.com.

We would like to report this error to you so that you can fix it.
Who is the right contact person?
Greetings
AM

[Basam.Yousif]

In what way "parts of them are displayed differently"?

Can you share some pics?

[app-management]

The windows on all floors are supposed to look like the windows in the top floor, but the openings seem to not be rendered correctly.