Description

This issue occurs when merging static meshes that have multiple LODs.

If they are using UV1 for lightmap index, after merging, the UV1 of the result for each LODs will all be differents, making the lightning totally screwed when displaying anything but LOD0.

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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-159104 in the post.

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Unresolved
ComponentUE - LD & Art - World Building - HLOD
Affects Versions4.27
Target Fix5.1
CreatedJul 11, 2022
UpdatedJul 13, 2022