Launching a specific UDN Project with Vulkan Support enabled crashes launching on Quest

UE - Platform - XR - Jul 30, 2020

When attempting to run the attached Project submitted from UDN, it will crash on launch. If Vulkan support is disabled, the Project will run as expected on Quest. This issue DOES NOT appear to repro ...

Widget Components set to screen space do not render in the correct position with low engine scalability settings after upgrading to 4.8 from 4.7

UE - Editor - UI Systems - Jun 29, 2015

I widget component that has been set to show in screen space will not render in the correct position of screen. It will be offset. This appears to happen after a project has been upgraded from 4.7.6 ...

Self Shadow enabled causes shadow artifacts

UE - Graphics Features - Sep 4, 2015

Shadow artifacts will appears when the camera is moving towards a character or if playing will appears with the character if Self Shadow is enabled for the character. Sample video and image attache ...

Character actors incorrectly collide with moving actors while jumping

UE - Gameplay - Mar 21, 2016

Character will incorrectly slip through actors that are moving while the character is jumping. ...

Lock Actor Movement doesn't prohibit rotating an object by turning the viewport while piloting it.

Tools - Jun 12, 2015

If you pilot an object and wish for it not be moved, such as a camera, you can use the Lock Actor Movement option. This will stop the object from moving, but it will not stop the object from being r ...

Physical material Surface Type Does Not Return Name In Packaged Game

UE - Gameplay - Oct 18, 2016

When converting a surface type to a string value and printing to screen it will return the display name in PIE and Standalone game. In a packaged project or launched from the editor it will display ...

Saving an asset after renaming it, if it wasn't saved before that, can cause it to exist without being visible.

Tools - Jun 1, 2015

If you 'Save All' after renaming an asset after it's creation, without any saves prior, it will appear in the windows explorer's content folder but will not be visible in the editor. ...

Fields with Maximum resolution are not affecting all leaves of a Geometry Collection

UE - Simulation - Physics - Destruction - Apr 25, 2025

Fields with Maximum resolution are not affecting all leaves of a Geometry Collection on 5.4 and onwards. When calling GetRelevantParticleHandles() a Maximum Resolution field does return all particl ...

Importing skeletal meshes with uniform scale >1 causes rotation in skeletal mesh editor to improperly register

OLD - Anim - May 11, 2015

If a skeletal mesh is imported with a uniform scale of >1, the rotation feature in Persona will not rotate bones at the proper ratio. The meshes rotation will slow down as the uniform scale increase ...

Complex Collision as Simple causes odd Overlap behavior

UE - Simulation - Physics - Jan 25, 2016

When triggering overlap events with a Static Mesh using Complex Collision as Simple, the overlap Begin and End events will be triggered rapidly in sequence. Changing to Default collision will fix t ...