Hierarchical Instanced Static Mesh does not render correctly on Vulkan mobile

UE - Platform - Mobile - Nov 17, 2022

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 ...

GAS: RemoveReplicatedLooseGameplayTag on unadded tag causes it to be replicated

UE - Gameplay - Gameplay Ability System - Nov 17, 2022

A UDN user found that calling AbilitySystemComponent->RemoveReplicatedLooseGameplayTag(TagToRemove); while the gameplay tag was not in the TagMap, will create an entry for it with count 0, see ...

Double-clicking metasound graph input widget resets value to 1, but displayed value does not change

UE - Audio - MetaSounds - Nov 16, 2022

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...

GAS and single process PIE: modifiable static variables accessed by server and client

UE - Gameplay - Gameplay Ability System - Nov 16, 2022

See: UAbilitySystemGlobals::HandlePreLoadMap GAS features static variables that are modified by both server and client, thus result in issues in single process PIE where they access the same memory ...

Improper Initialization of trigger values when added at runtime with the key pressed already

UE - Gameplay - Input - Nov 11, 2022

See the comment on UInputTrigger::LastValue around issues being a bool type on first tick ...

FEnhancedActionKeyMapping struct has incorrect comparison results

UE - Gameplay - Input - Nov 11, 2022

The fix for this is to override the  FEnhancedActionKeyMapping::operator== to account for the deep copy that happens on modifiers instead of comparing addresses ...

File state in perforce cache is incorrect when revert + delete is enabled

UE - Editor - Workflow Systems - Nov 11, 2022

If the option to delete files on revert is enabled, the revert operation causes incorrect file state in the perforce cache It looks like it has some code to handle this when the option to delete is ...

InstancedStaticMeshComponent causes crash in editor compiled with ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES set to zero

UE - Graphics Features - Nov 11, 2022

ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES works without crashing in ue4.27. It appears that this code path is not maintained in ue5. ...

Nanite material audit reports null material when WorldGridMaterial replaces a deleted material in the editor

UE - Rendering Architecture - Materials - Nov 10, 2022

Workaround it to reassign a material to the mesh and resave ...

Can't update thumbnail of Texture 2D Array asset when upate source texture resource.

UE - Editor - Content Pipeline - Datasmith - Nov 9, 2022

Texture2DArray asset thumbnails are not reflected when the source file texture is changed. Once a Texture2DArray asset is opened and loaded, the thumbnail will follow any subsequent source file upda ...