Generating HLODs with approximated mesh does not support spline meshes. Spline meshes are seen as simple static meshes. Except the material seems to be rendered correctly so it could not be mapped to the generated mesh.
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Is this a bug or a missing feature? Is there a workaround?
Testet in UE 5.4.4 and 5.6 Preview.
Steps to Reproduce
Hi,
Apologies for the delay. It’s a known issue on Epic’s end that instancing doesn’t support spline meshes. After testing, I noticed that Approx had the same effect.
I’m seeing if I can get the JIRA that I could share with you, or if I can create a separate bug report for this specifically for approx.
In the meantime, a workaround that might work for you would be merging the spline into a static mesh actor which can be done by selecting your spline mesh > clicking on “Actor” at the top toolbar > Merge Actors > Merge > Saving it and then using said static mesh.
Edit: Unfortunately we don’t have a tracking link, but Epic mentioned this case in the JIRA with instancing.
Regards