Unreal Engine Issues

UE-170504

Hierarchical Instanced Static Mesh does not render correctly on Vulkan mobile

Hierarchical Instanced Static Mesh does not render correctly on Vulkan mobile

Description

Something is rendering incorrectly about hierarchical instanced static meshes on vulkan mobile. If the project uses GPUScene, instead of using HISM for manual instancing, and relying on GPUScene for auto-instancing would be a suggested workaround.

Steps to Reproduce
  1. Open [Link Removed]
  2. Select "BP_BritishMuseum_TranseptLargeWall_Instances" in the outliner
  3. Observe the associated meshes
    1. [Image Removed]
  4. From the settings drop down, set preview rendering level to Android Vulkan
  5. Observe that the same meshes look incorrect
    1. [Image Removed]

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Fixed
ComponentUE - Platform - Mobile
Affects Versions5.0, 5.1
Target Fix5.2
Fix Commit23844682
Main Commit23844682
CreatedNov 17, 2022
ResolvedJan 26, 2023
UpdatedJan 30, 2023
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