Unreal Engine Issues

Material Function Instances do not show up in the Material Function Call node

This is not a regression. Tested in //UE5/Release-5.1 CL23901901. The Material Function Instance can be dragged and dropped into the Material Function Call. ...

Cable Actor becoming stiff when bound to two dynamic objects

the cable actor does not dynamically deform when the cable actor's parent mesh moves. Instead, the cable actor becomes rigid between the meshes it's bound between. This bug does not occur in the fo ...

Allow Cinematic Control is reset to true when restarting the editor

When restarting the editor the viewport will have its Allow Cinematic Control flag reset to true. ...

UAnimSequence::ExtractRootMotionFromRange causes problems on skeletons with different root bone ref transforms

We should disable this block of code by default, with a config/console var to enable it: // Transform to Component Space const FTransform RootToComponent = RootTransformRefPose.Inverse(); StartTran ...

FTabManager::PersistLayout Ensure Triggered During Docking/Undocking

An ensure (ensure( !PersistentLayout->PrimaryArea.IsValid() )[Image Removed] is firing in FTabManager::PersistLayout() sometimes when docking/undocking quickly. ...

DistanceFieldReplacementMesh doesn't work properly for Nanite meshes

Content Browser 1 Inconsistent Behavior with Tabs

"Content Browser 1" auto-hides if opened with the Level Editor, and has inconsistent docking behavior under the conditions caused by the repro steps above. The root of the problem seems to be that ...

Deferred spawned actors can receive BeginPlay before they are finished spawning

Actors that are deferred spawned on BeginPlay can be added to the world while AWorldSettings::NotifyBeginPlay is still iterating the world's actors and dispatching BeginPlay. AActor::DispatchBeginPl ...

Meta “AllowClasses” doesn’t filter in TArray using class

This occurred when we use a class and variable TSubclassOf<UObject>, TObjectPtr<UClass>, TSoftClassPtr<UObject>. [Image Removed] ...

Push-model blueprint array property not properly marked dirty if modified by different actor

In KismetArrayLibrary.h, functions that modify the array property call MARK_PROPERTY_DIRTY(Stack.Object, ArrayProperty). Because these calls use the stack object and not the property's owner, modify ...