Editor Crash when trying to get Color data from Vertex buffer

Rendering - Nov 6, 2019

When attempting to get the vertex color of an instance of of a static mesh that is painted after placing it in the World Viewport. The Editor crashes returning an "Unhandled Exception". The cause o ...

PhysX Clang Builds Broken

Physics - Nov 5, 2019

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. ...

Procedural Mesh Component 'Create StaticMesh' does not preserve collision

Tools - MeshEditing - Nov 5, 2019

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

Hide Bone in constructor does not update world instances

Anim - Nov 4, 2019

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

Anim - Nov 4, 2019

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

Gameplay - Blueprint Editor - Nov 4, 2019

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

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.

Gameplay - Blueprint - Oct 31, 2019

After fixing the crash from UE-82407 when compiling the child blueprint that has claimed the component name the parent was previously using without having compiled the parent, an internal compile er ...

Importing EDLs into Sequencer with the same shot more than once will stack them on top of each other.

Tools - Sequencer - Oct 30, 2019

Importing EDLs that reference the same shot more than once will not work correctly.  ...

BeginPlay not called for Post-Process Anim Instance

Anim - Oct 29, 2019

Post-Process Anim Instances do not have BeginPlay called. The proposed fix is to addif (PostProcessAnimInstance) { PostProcessAnimInstance->NativeBeginPlay(); PostProcessAnimInstance->Blu ...

Crash on applying animation modifier for some assets

Anim - Oct 29, 2019

When removing curves on some assets, a crash can occur. This seems to be due to const FSmartNameMapping* CurveMapping being null and dereferenced within UAnimationBlueprintLibrary::RetrieveContainer ...