Unreal Engine Issues
Unreal Engine Issues
Static lighting isn't bouncing when using Layered Materials
UE - Graphics Features - Lumen - Aug 13, 2020Static lighting will not bounce on the ceiling when using a Layered Material. The Material Attributes Layers node is used which doesn't appear in 4.24.3 so this isn't a regression. This was report ...
Disparity in Rotation tool
Tools - Aug 31, 2016There is disparity between the two different ways of editing rotation. When using the scrubber in the details panel each value scrubbed only affects that value and the values go from 0 to 360. When ...
Realtime Rendering toggle disabled after using Cloth Painting
UE - Simulation - Visual - Jul 29, 2021After finishing cloth painting, the ability to toggle Realtime Rendering in the viewport is greyed out. Additionally, the Disable Realtime Override button doesn't seem to have any effect. This probl ...
[CrashReport] UE4Editor_Persona!FReferenceSkeleton::FindBoneIndex() [referenceskeleton.h:252]
OLD - Anim - Jul 20, 2017This is a common crash affecting users in 4.16, and has occurred since at least 4.14, affecting more than 200 unique users. Unfortunately none of them have provided any additional information. Sou ...
[CrashReport] UE4Editor_CoreUObject!FLinkerPlaceholderObjectImpl::FindRawPlaceholderContainer() [linkerplaceholderbase.cpp:161]
UE - Gameplay - Blueprint - Sep 27, 2017This is currently among the top 10 crashes coming out of the 4.17.2 hotfix, affecting a few unique users, and this specific callstack does not appear to have occurred in 4.17.1. This may be a regres ...
Some Twinmotion library assets do not render in Path Tracer in files with a large number of assets
TM - Rendering - Apr 17, 2025Reported in SF [Link Removed] In scenes containing large numbers of certain Twinmotion assets, when activating Path Tracer, some of the assets will not render. The assets will render normally in St ...
Landscape Change Component Size Tool removes foliage from landscape
UE - World Creation - Worldbuilding Tools - Foliage - Dec 12, 2017Foliage painted onto a landscape will disappear when Sections per Component is changed from 1x1 to 2x2. Affects 4.17.2 CL 3658906, 4.18.2 CL 3794801, 4.19 Main Possible Workaround is to set the Re ...
No shadow cast after Static Mesh Editor material assignment
UE - Editor - Content Pipeline - Datasmith - Importer - Apr 21, 2020This is a Rhino file. Shadows are not cast on the Static Mesh after materials are assigned in the Static Mesh Editor. This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4. ...
LIVE: ProjectileMovement component does not function when a PrimitiveComponent is missing or removed from the Components
UE - Simulation - Physics - Nov 18, 2014A projectile brought over from 4.5.1 or earlier that does not have a Primitive Component as the Root, or removing the root from the projectile in 4.6, returns an error: "Movement component [Projecti ...
abnormal sound output on UMG animation track
UE - Anim - Sequencer - Jan 28, 2022Sound repeated at initial frame only on 4.27. it was worked fine on 4.26 and 4.25 It is probably a side effect caused by the sequencer changes below. Sequencer: Move Finalization phase back onto ...