Unreal Engine Issues
Unreal Engine Issues
Dithered LOD Transitions not Rendering Correctly on iOS with Use Landscape Lightmap feature and Foliage
UE - Platform - Mobile - Jun 21, 2016Dithering appears aggressive and has a screen door-like effect when using the new Landscape Lightmap in combination with Foliage LOD changes. Owen Stupka attempted to reproduce the issue on his iPa ...
If Visible is off in actor details by default, Visibility track in Sequencer doesn't work in game
UE - Anim - Sequencer - Sep 8, 2016If Visible is off in actor details by default, Visibility track in Sequencer doesn't work in game. It appears to work when you hit play in the Sequencer Editor, but doesn't work in game. ...
Crash triggering SetScalarParameterValueOnMaterial node
UE - Gameplay - Nov 30, 2015Crash occurs when the user triggers the SetScalarParameterValueOnMaterial function node. ...
GetOverlappingActors/Components ignore physics actors spawned in with zero movement
OLD - Anim - May 15, 2017GetOverlappingActors/Components ignore physics actors spawned in with zero movement. This only effects actors where the root is the DefaultSceneRoot and not the Static Mesh Component. User Descript ...
Getattachedactors does not return the proper value when called from the Constructor
UE - Gameplay - Nov 7, 2018A user has reported that using GetAttachedActors in the Constructor does not work properly. If actors are attached in the editor, the function does not return the correct value when called in the Co ...
Crash in Network Prediction during PeriodicDamage GameplayEffects Test
UE - Networking - Jan 27, 2021Crash during Periodic Damage test for Gameplay Abilities system in the Network Prediction plugin, when both plugins are enabled. Related to a null GameInstance. ...
Replacing actors during LevelInstance inline editing applies incorrect transforms
UE - World Creation - Worldbuilding Tools - Level Instances - Jul 14, 2022When you finish editing a level instance, the actor is converted from the world position to the local position of the level instance, but if you replace the actor, the conversion process is performe ...
Volume artifacts (Bleeding)
UE - Graphics Features - May 31, 2023Path Tracer Normals Issue
UE - Rendering - Graphics Features - Path Tracer - Oct 29, 2025Path Tracing normal maps reflect light differently than Lit, and do not look accurate. Also observed in //UE/Release-5.6, CL: 45232827 ...
Issue with r.SkyAtmosphere.TransmittanceLUT.UseSmallFormat
UE - Rendering - Graphics Features - Mar 30, 2026When "r.SkyAtmosphere.TransmittanceLUT.UseSmallFormat=1", some values for the Sky Atmosphere at some directional light angles can lead to the sun disk being cut off, and taking on a chord shape. A ...