Unreal Engine Issues

UE-53548

Skeletal mesh vertex colors swizzled on Mali devices

Skeletal mesh vertex colors swizzled on Mali devices

UDN
Description

We are currently experiencing an issue where skeletal mesh vertex colors are different on certain mobile devices.

What we see is the following:

  • Red and Blue channels are swapped.
  • It occurs consistently on European Galaxy S7 devices (Arm Mali-T880) but not on the US variant (Snapdragon 820).
  • The problem is exclusive to Skeletal Meshes. Static meshes work as expected.

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Cannot Reproduce
ComponentUE - Platform - Mobile
Affects Versions4.17
Target Fix4.20
CreatedDec 17, 2017
ResolvedMar 5, 2018
UpdatedSep 16, 2019