Unreal Engine Issues

Internal Compiler Error: Tried to create a property Crash in scope Beta_C, but another object (ObjectProperty /Game/Alpha.Alpha_C:Crash) already exists there.

After fixing the crash from [Link Removed] when compiling the child blueprint that has claimed the component name the parent was previously using without having compiled the parent, an internal comp ...

Hide Bone in constructor does not update world instances

Hiding bones during construction is not properly displayed by level instances placed at editor time. Note that setting 'Update animation in editor' on the mesh and re-running the constructor script ...

Animation flickers when made visibility is re-enabled

An animation can display an incorrect frame upon having its visibility re-enabled, resulting in a noticeable flicker. This can be prevented by setting the mesh's 'Visibility Based Anim Tick Option' ...

Crash when Pasting a Gameplay Tag variable setter into a level Blueprint

Copying a gameplay tag variable setter from a blueprint into a level blueprint fails an assert in UGameplayTagsManager::GetCategoriesMetaFromField. ...

World Compositor out of touch with loaded levels state

Crash when using world composition origin rebasing

Assertion failed: Pair != nullptr [Link Removed] [Line: 566] UE4Editor_Core!AssertFailedImplV() [e:\unrealeditorplaydead\engine\source\runtime\core\private\misc\assertionmacros.cpp:105] UE4Editor_C ...

PhysX Clang Builds Broken

Clang physx builds in 4.23 seem to be broken due to a change of GuPersistentContactManifold.h including #pragma warning and no longer ending in a new line. ...

Calling GEngine->Browse from an RPC implementation causes a crash

The engine is not resilient to calling Browse from within an RPC implementation, and likely not resilient to other ways of destroying the net driver within RPCs/OnReps. It's not something we need to ...

Procedural Mesh Component 'Create StaticMesh' does not preserve collision

Creating a static mesh from a procedural mesh does not preserve simple collision or collision settings. ...

Sub Anim Instances Evaluate when not contributing

When using a sub anim instance, the instance will continue to update/evaluate even when its value is not currently contributing to the final pose. ...