Unreal Engine Issues

[AI] BTService_RunEQS has rare crash during OnQueryFinished

The crash log shows Error: Ensure condition failed: MyMemory->RequestID != INDEX_NONE [UE5\Engine\Source\Runtime\AIModule\Private\BehaviorTree\Services\BTService_RunEQS.cpp][Line: 93]. Other logs ha ...

Shadow doesn't update for a moving nanite mesh (fixed in 5.4)

When a nanite mesh moves, the shadow does not. ...

Subobject Data Subsystem has CanPasteSubobjects decorated with UFUNCTION but PasteSubobjects is not.

In the Subobject Data Subsystem, CanPasteSubobjects is BlueprintCallable, but the call to PasteSubobjects is not. Given CanCopySubobjects and CopySubobjects are both BlueprintCallable, the ability t ...

[Datasmith] Geometry in specific wire file is not tessellated

Launching iOS build from Xcode fails after initial install

Xcode has an issue with repeated launches onto an iOS device.  After the initial install, Xcode is unable to install any other builds of that same app due to some sort of codesigning issue.  A work ...

GPU particles disabled on Quest

GPU particles were disabled on Quest 1 due to a compute issue. We need to validate / fix issues for Quest 2 / Quest 3. Reported in [Link Removed] ...

Media Player can't continue to play after the progress bar is dragged.

This bug occurs in 5.3 version. It's ok in 5.2 version. ...

Foliage 'BlockAll' instanced static meshes do not affect NavMesh

When placing static mesh foliage and setting the foliage mesh's Collision Preset to Block All,  the placed meshes do not consistently block parts of the nav mesh. Expected: Placed meshes (for examp ...

Recentering on Meta Quest doesn't work

This is a serious issue as it's causing applications to fail certification on the Meta Quest store ...

UBlueprintEditorLibrary::ReparentBlueprint() results in compiler errors when attempting to reparent from a native parent class to a blueprint parent class

When using the Reparent Blueprint node in an Editor Utility Blueprint, e.g. an Asset Action Utility, compilation errors will occur if you try to reparent a blueprint with a native parent class to a ...