With Interchange, the combined meshes should not include the Collision mesh. Also the combined meshes should use the collision mesh as their collision.
cf. [Link Removed]
Import the attached file, do not forget to toggle the "Combine static mesh options"
with legacy, all meshes are imported and the collision is applied to the combined meshes
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With interchange, the collision mesh is merged with the combined meshes. And the collision is generated.
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-239640 in the post.
| 0 |
| Component | UE - Editor - Content Pipeline - FBX |
|---|---|
| Affects Versions | 5.5.1 |
| Target Fix | none |
| Created | Jan 22, 2025 |
|---|---|
| Updated | Nov 26, 2025 |