Steps to Reproduce

This is not a regression,repro in 4.21


Repro Step

1) ** Open scene scene attached in 3Ds Max.

2) View simple Window. Open Material editor

3) Using the Eye dropper , Click on the windows.

4) Notice this is a Multi-Sub Corona Material ( see image)

5) Go to file export using Datasmith

6) Open Unreal

7) Import Scene

--> Notice that the Windows have a strange look , UVs are all messed up.

8) Click on window static mesh 

9) Click on Mesh Editing tab

--> Notice the Mesh correct itself .

10) Close Window , Notice that the windows Issue in the viewer is now fixed....


--> Link for file here :[Link Removed]



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Won't Fix
ComponentTools - Datasmith - 3dsMax
Affects Versions4.22e0
CreatedJan 29, 2019
ResolvedOct 28, 2019
UpdatedOct 29, 2019