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Unlit material now default?

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1
02-05-2026 02:43 AM
ToreHolmem_AW
by
New Contributor
‎02-05-2026 02:43 AM

After upgrading to 2.2 all our integrated meshes that we stream in with the ArcGIS plugin to Unreal have unlit materials. Which breaks all our projects. 

1 - Why. Why was this implemented, what is this trying to achieve

2 - How do we fix it

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1 Reply
MichaelBranscomb
by Esri Frequent Contributor
Esri Frequent Contributor
‎02-06-2026 03:11 AM

Hi Tore,

Sorry to hear you've found what appears to be a behavior change. Couple of questions:

  • Before updating to v2.2, were you using v2.1 (August 2025)?
  • Does this only affect ArcGISIntegratedMeshLayer or do you see this for other layers too?
  • Is the service you're using unlit?
  • Do you see this in the editor or only in packaged projects/apps?
  • Are you applying custom materials using the layer MaterialReference property?
  • Are your projects failing to build/run or do they run and it is a visual difference?
  • Can you provide a screenshot or video?
  • Can you share details of the source service (if we can access)?

 

Thanks

 

Mike

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