SteamVR crash with DirectX 12

UE - Platform - XR - Aug 5, 2019

SteamVR will crash with dx12 enabled. You may need to attempt to teleport or open the console for the crash to occur. Also confirmed in MAIN 4.24 CL 7713732 ...

Add Runtime Candidate Image does not produce a valid ARCandidate image on Android

UE - Platform - XR - May 3, 2019

Add Runtime Candidate image does not appear to create an AR Candidate image when being used on Android. ...

Flipped Tracker axes when using Vive Trackers with Vive Wands

UE - Platform - XR - Mar 15, 2019

Using pucks with motion controller will cause the tracking pucks x and z axes to flip. ...

Packaged Builds with DX12 Crash on 2nd Start

UE - Graphics Features - Oct 18, 2018

Running a packaged game with DX12 will crash on launch every second start and after. If you delete the files with the .ushaderprecache extension that are in the ProjectName/Saved folder the exe star ...

Double-Sided Geometry Collision Doesn't Work When Using Set Physics Linear Velocity

UE - Simulation - Physics - Sep 10, 2018

Double-sided geometry collision doesn't work when using physics set linear velocity. This does not occur when using floating pawn movement or character movement components. Working as expected in 4 ...

Animation FBX export is broken for ThirdPersonCharacter

UE - Editor - Content Pipeline - Datasmith - Exporters - Jul 20, 2018

It seems like the animation fbx exporter is broken. The mesh is exported just fine and can be imported in any application without issue. As soon as the animation is exported the mesh becomes broken ...

[CrashReport] UE4Editor_TextureFormatDXT!FNVTTCompressor::FNVTTCompressor()

UE - Foundation - Core - Cooker - Dec 1, 2017

This is a common crash that has occurred since at least 4.12. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to [Link Removed]. ...

[CrashReport] Assertion failed: !Export.ClassIndex.IsNull() | UPackage::Save()

UE - Foundation - Core - Cooker - Sep 20, 2017

This is a somewhat common crash coming out of the 4.17 release. User Descriptionsclicked Launch->Firefox. This is the same project with in-game video-screens which has been crashing on Launch for W ...

Playrate / slomo causes motion blur length to change incorrectly

UE - Graphics Features - Jun 16, 2017

Discuss with the team what the actual desired behavior should be and adjust this calculation. This one is meant to stabilize the motion blur when we have a variable delta time but may be having kn ...

Full Scene Importer Blueprint will only set as Movable Components

UE - Editor - Content Pipeline - Import and Export - Jun 22, 2016

When importing a full scene using the Full Scene Importer and having it create a Blueprint actor that will set it's default mobility to static. Even unchecking the Import as Dynamic option will not ...