Unreal Engine Issues
Unreal Engine Issues
Branching Points in a Montage Affect the Rotation Outcome of Root Motion
UE - Anim - Runtime - Mar 28, 2025When playing Montages with Root Motion, the sub stepper extracts root motion transform in small increments. If a Branching Point exists within the interval being extracted, the extraction range is s ...
[CrashReport] Commandlet crash - UE4Editor_Engine!FAnimationUtils::CompressAnimSequenceExplicit() [animationutils.cpp:621]
OLD - Anim - Sep 7, 2017This is an infrequent commandlet crash that has affected a number of users exclusively in 4.17.1 (possible regression from 4.17.0?). There are also two instances of older cases in 4.13 and 4.15, bu ...
[CrashReport] UE4Editor_CoreUObject!FCompressedChunk::FCompressedChunk()
UE - Foundation - Core - Jul 24, 2017This is a common crash affecting users in 4.16 and the 4.17 Previews. The two descriptions provided by users say their crash occurred after updating their project from 4.13. User DescriptionsUpgra ...
Wind affects cloth in scene when there is no Wind Directional Source actor placed
UE - Simulation - Physics - Character - Jun 22, 2015If a character with a cloth simulation or a mesh with a cloth simulation is in the scene there is wind force that is being applied to the cloth. The only way to remove this is by setting a Wind Dire ...
Collision on rolling ball template floor incorrectly affects player character
Docs - Samples - May 27, 2015In the rolling ball template, the new floor meshes cause the player character to jump when the player has not pressed any jump commands. It occurs more often if the players movement has been increas ...
Unable to save blueprint after Hot Reload that affects the class the blueprint is based on
UE - Gameplay - Blueprint - Sep 14, 2015After hot reloading a project, if the class a blueprint is based off of was edited, the blueprint is unable to be saved due to being referenced in Engine/Transient. Project for Repro: [Link Removed ...
r.Shadow.RadiusThreshold and r.Shadow.FadeResolution not affected by Scalability Settings
UE - Graphics Features - Apr 20, 2018r.Shadow.FadeResolution and r.Shadow.RadiusThreshold values in DefaultScalability.ini are not being applied ...
InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights
UE - Platform - Mobile - Aug 22, 2019This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...
Unable to affect setting cubemap blend in skyLight and reflections on transluscent materials
UE - Rendering Architecture - Oct 17, 2023Attempting to blend SkyLight Cubemaps via the SetCubemapBlend function to blend between different Cubemaps to make the changes seamless is not reflected. As a workaround, in LumenTracingCommon.ush, ...
Crash when building lighting with a skylight that draw lit translucent material
UE - Graphics Features - Aug 14, 2017A common crash affecting many users in 4.17.0 ...