HLOD material baking doesn't take into account any custom primitive data set on primitives that contribute to the bake.

This was raised in:

The suggested code solution in that UDN can probably be used.

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Won't Fix
ComponentTools - HLOD
Affects Versions4.25
CreatedMay 7, 2020
ResolvedAug 31, 2021
UpdatedAug 31, 2021