Unreal Engine Issues
Unreal Engine Issues
Volumetric fog does play nice with dynamic res
UE - Graphics Features - Jan 4, 2019Dynamic resolution dynamically changes the the size of the viewport in render targets. The thing is when the resolution changes: it is reprojecting previous frame that is stored in history render ta ...
Pose watches don't display correctly with compatible skeletons
UE - Anim - Runtime - Anim Blueprints - Aug 19, 2022"Hello, we've found a quirk with ABP's pose watch and compatible skeletons. Same setup as above. We have skeleton A as the base and skeleton B as a compatible skeleton. They both share similar hiera ...
Disabling DFAO prevents landscape from contributing to Lumen scene
UE - Graphics Features - Lumen - Oct 10, 2023From licensee: We disabled DFAO on our project (using r.DistanceFieldAO 0) to replace it with Lumen occlusion, as the combination of both was creating dark blobs under bushes and grass. However, we ...
[Mobile/Forward Rendering] PlanarReflection does not work when the reflection plane faces certain directions
UE - Platform - Mobile - Sep 24, 2025Note: This repros on 4.27 and all 5.x versions. When using the mobile renderer and/or forward shading, Planar Reflection will simply not work if the reflection plane normal has components that add ...
Issues changing physics properties on destructible meshes
UE - Simulation - Physics - Destruction - Oct 15, 2015Numerous issues when manipulating destructibles. 1) Changing collision response pre-fracture will not affect chunks post-fracture 2) Changing collisions response pre-fracture will prevent damage f ...
Playing sequences in reverse snaps after sequence has first ran
UE - Anim - Sequencer - Dec 29, 2016I 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, 2017A 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 ...
SceneCaptureComponent2D 'Primitive Render Mode' Always Selects Legacy Option
UE - Graphics Features - Nov 9, 2017When using SceneCapture2D and trying to edit the "Primitive Render Mode" (found in Details panel, Scene Capture) you can select the "Render Scene Primitives (Legacy)" and the "Use ShowOnly List" opt ...
Quickly using alt-tab with a blueprint in a new window causes the event graph to capture input of the alt key
Tools - Nov 13, 2017Quickly using alt-tab with a blueprint in a new window causes the event graph to capture input of the alt key. This issue does not occur when the blueprint is a tab of the main UE4 editor window. Th ...
Audio/Video out of sync after seek
Media Framework - Jan 29, 2018There is an issue that sometimes occurs when using the seek option in the media player while the Decoder is set to WMF. When this happens the audio desyncs from the video and for the rest of the vid ...