Changing AntiAliasing method in runtime make SkeletalMeshes invisible

Development Rendering
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1

Project that use Forward Rendering with MSAA as default can’t change AntiAliasing method in runtime.
Steps to reproduce:

  1. Create any template project
  2. Change Project Rendering method to Forward
  3. Open any scene with SkeletalMeshes
  4. Change AntiAliasing Method with command r.AntiAliasingMethod 4
  5. The SkeletalMeshes is now invisible blur with shadow

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image1254×869 105 KB

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image1259×873 116 KB

Possible errors:

  • Editor can crash with Assertion failed: !bHasInstanceCullingDrawParameters [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Renderer\Private\MeshDrawCommands.cpp] [Line: 1636]

UPD: Unreal Version 5.7.4. Tested on EGS version and on version built from source

2

We are able to reproduce this as well on 5.6.0