Volumetric lightmap + stationary light has missing shadows

UE - Rendering Architecture - Sep 5, 2023

Primitives with the "Lightmap Type" set to "Force Volumetric" are not shadowed correctly. Issue dates back to at least 4.27.2. As a workaround, making FLightCacheInterface::GetStaticInteraction al ...

Free physics constraints between two objects of differing size causes smaller object to jitter

UE - Simulation - Physics - Sep 13, 2023

A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...

Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly

UE - Anim - Rigging - Retargeting - Feb 13, 2025

Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted.  Users have to refresh the properties that select the base pose in order to fix the ...

Atmospheric Fog placed in BP will not render in Standalone or Packaged Game

UE - Graphics Features - Jun 29, 2015

Atmospheric Fog when placed inside of a Blueprint, and the BP placed in level will render correctly in PIE and Editor but will not render at all in Standalone Game, Launch or Packaged Games. This i ...

Cannot access Make MaterialSpriteElement Struc

UE - Graphics Features - Apr 16, 2015

You cannot access the Make MaterialSpriteElement Struc since 4.6 when pulling off a Material Billboard Component Set Array Elem setup. In 4.5[Image Removed] In 4.7.5[Image Removed] also reproduce ...

CrashReporter Client has no options to close without sending

UE - Foundation - Core - CrashReportClient - Jun 9, 2016

The options to close the CrashReporter window without submitting the crash report are no longer available. I suspect this was an intentional change for Paragon ([Link Removed]), however this is not ...

Compiling a blueprint with SetCollisionResponseToChannel Causes Crash

UE - Gameplay - Dec 5, 2016

When using a blueprint with a destructible component, you can call the SetCollisionResponseToChannel node of that component in the construction script. As a result the engine will crash when attempt ...

Switching to different modes in the Modes panel causes PIE to take input from a connected VR headset for the Y axis camera movement

UE - Platform - XR - Dec 9, 2016

If a VR headset is connected, it will be used for Y axis camera input in PIE if you have switched to and from the Landscape tab in the Modes panel. You can fix this temporarily by reopening the edit ...

[CrashReport] Access violation - code c0000005 in FD3D11DynamicRHI::RHISetShaderTexture

UE - Rendering Architecture - RHI - Apr 17, 2017

This crash occurs frequently for our users. It appears to be the same issue that was logged in [Link Removed]. For that Jira, the CrashGroup stopped getting updates after 4.13.2 - [Link Removed] ...

Setting bIsOrthographic does not change the view to/from Orthographic view

UE - Gameplay - Nov 16, 2017

Editing the bIsOrthographic variable in PlayerCameraManager does not cause the view to change to/from Orthographic Regression?: Yes This worked correctly in 4.17.2-3658906+++UE4+Release-4.17 This d ...