How addressables decides what mesh components are not used?

Unity Engine
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1

Hi there, recently I got a problem with addressables that one mesh gets stripped of some vertex in addressables build. And after a little bit of digging, I found this post( Warning to all my friends: BEWARE Optimise Mesh Data!! ), and these mesh components are removed due to this setting.
In my addressables, I have 2 objects using this same mesh: one is a particle system, which uses a simpler shader and those mesh components are NOT used; the other is a unit prefab, which uses a complicated shader and all mesh components are used. In this case, why would mesh components be considered as not used and get removed? And is it possible to config how addressables uses which asset to decide what mesh components are not used?
9005308--1241002--upload_2023-5-10_10-53-17.png
(addressables with only the particle system, which uses part of the mesh components)
9005308--1240981--upload_2023-5-10_10-50-59.png
(addressables with only the unit prefab, which uses all mesh components)
9005308--1240978--upload_2023-5-10_10-50-39.png
(addressables with both the particle system and the unit prefab)

9005308--1240975--upload_2023-5-10_10-49-45.png
9005308--1240981--upload_2023-5-10_10-50-59.png

2

My addressables version is 1.20

3

Do you enable Non-Recursive Dependency Calculation? If so, you can try to disable it. I encountered a similar issue before: Unity Issue Tracker - m_VertexData tangents are stripped when Non-Recursive Dependency Calculation is enabled.

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