Description

Reported in SF [Link Removed]

For Datasmith models containing lights, resynchronizing the model after any changes will cause any lights that had shadows enabled prior to the sync to have that setting reverted to Disabled.

This is a regression and did not occur in Twinmotion 2025.2.

Steps to Reproduce
  1. Open a new scene in Twinmotion and import a model through Datasmith that contains lights with the Process setting set to All
  2. In Twinmotion enable for Shadows for the imported lights
  3. Make an edit to the original model in the DCC that does not affect the lights, such as adding or removing geometry
  4. Synchronize Datasmith

Result: The Shadow settings on the lights will be disabled on the resync

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention TM-23756 in the post.

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Unresolved
CreatedAug 4, 2026
UpdatedAug 4, 2026
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