Issue when blending materials with Nanite enabled 5.8 & 5.8.1

Summary

Issue when blending materials with Nanite enabled; they appear inconsistent. Note that version 5.7 does not suffer from this issue

What Type of Bug are you experiencing?

Level Design & Art Tools

Steps to Reproduce

when Nanite enabled

Expected Result

The materials should blend smoothly without any visual artifacts or rendering issues when Nanite is enabled

Observed Result

in 5.7 work fine

Affects Versions

5.8

Platform(s)

Windows

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