Sub Classing World Settings Causes Hot Reload to Crash

UE - Foundation - Core - Feb 3, 2016

When creating a subclass of World Settings, attempting to use the in-editor compile button to compile the code causes the editor to crash. Found in 4.11 Preview 4. Reproduced in 4.10.2 binary and ...

Material Shared Samplers do not honor Texture Quality console variables

UE - Graphics Features - Apr 28, 2016

When using shared samplers in the material do not adjust quality when adjusting the console variable or texture quality in Engine Scalability for SG.TextureQuality. Attached is an image for demons ...

PhysicsHandle::GrabComponent creates offset from hit location

UE - Simulation - Physics - Sep 15, 2015

When trying to create a "impaled" effect with a physics handle, calling GrabComponent creates an offset between the hit location and the projectiles location. This causes the skeleton to be "impale ...

Duplicated blueprints cannot access casted class nodes

UE - Gameplay - Blueprint - Jun 15, 2015

Duplicating blueprints that have 'cast to' nodes included in them display errors such as: "Could not find a function named 'AdjustShield' in 'worker_c'. Make sure 'worker_c' has been compiled for." ...

Playing sequences in reverse snaps after sequence has first ran

UE - Anim - Sequencer - Dec 29, 2016

I first came across this bug when I was working with Actor Sequences and noticed that the door I had opening would snap back when I tried to close it. Later I discovered that the issue was with play ...

USkinnedMeshComponent::FindClosestBone does not respect bRequirePhysicsAsset parameter

OLD - Anim - Mar 20, 2017

A licensee has reported that the USkinnedMeshComponent::FindClosestBone function does not respect the bRequiresPhysicsAsset parameter, resulting in the bone returning bones that are not part of the ...

[CrashReport] UArrayProperty::DestroyValueInternal

UE - Gameplay - Blueprint - Sep 14, 2017

This is a somewhat common crash that has affected multiple users in 4.17. User Descriptionstried to compile a blueprint after changing blueprint interface function definitions. Source Code 121 ...

Material Parameter Tracks don't transfer when converting Matinee to Sequencer(Showdown VR Demo)

UE - Anim - Sequencer - Sep 18, 2017

-Material Parameter tracks are not converted when converting it to a matinee to a level sequence asset Example: SplineRocketTrail smoke trails are not appearing when playing Matinee for Showdown VR ...

WorldGridMaterial gets added as Element 0 when importing LOD model

When importing a LOD model, LOD material can get added as element 0, not preserving previous material assignment. It's not possible to re-order/delete the automatically added Element 0 WorldGridMat ...

Hierarchical Instanced Static Mesh component culls before it is completely off screen

UE - Graphics Features - Dec 4, 2017

Hierarchical Instanced Static Mesh component culls before it is completely off screen. This only seems to happen with more than 3-4 instance elements. This also does not happen with Instanced Static ...