Unreal Engine Issues
Unreal Engine Issues
Characters using NavWalking on server have noticeable jitter on clients at lower framerates
UE - AI - Aug 23, 2018AI nav walking doesn't allow clients to set a "Base" for the character (SetBase from UpdateFloorFromAdjustment), so there is no floor result on frames where there is a net update. This causes simula ...
If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible
UE - Virtual Production - Tools - Jul 31, 2025If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible. The behavior only shows after d ...
The CTRL+S shortcut does not save an opened Sequence it the Sequencer Window is undocked
UE - Anim - Sequencer - Jul 29, 2025The CTRL+S shortcut does not save an opened Sequence it the Sequencer Window is undocked. Docking the Sequencer Window to the main window fixes the issue. I've reproduced the behavior on UE versions ...
High Res Screenshot Tool Scene Color rendering washed out as EXR
UE - Graphics Features - Dec 8, 2015When rendering out the Buffer Visualization Targets with the HDR setting on, the resulting Scene Color EXR is rendering significantly washed out compared to the Buffer Viz. in the Editor and if comp ...
Notifies are retriggered on loop of an animation in Matinee/Sequencer
UE - Anim - Sequencer - May 31, 2016Notifies are retriggered on loop of an animation in Matinee/Sequencer. This occurs during Sequencer Editor playback and when playing in game. ...
Using Scene Capture 2D with a movable Skylight will cause a crash
UE - Graphics Features - May 11, 2015When placing a Scene Capture 2D with an assigned Render Target Texture and using a movable Skylight the editor will crash. [Link Removed] ...
Generate Project Files is not automatically run after Switch Unreal Engine Version on Mac
UE - Foundation - Core - Feb 8, 2016When converting a project to a different version of the engine, the GenerateProjectFiles.command process is not ran as it would be on Windows with GenerateProjectFiles.bat. This can cause issues, es ...
Rendering glitch when launching on Android
UE - Platform - Mobile - Aug 2, 2016https://answers.unrealengine.com/questions/462957/rendering-glitch-when-launching-on-android-ue413-p.html I was able to repro it on Nexus5 with Android 5.1.1. ...
ContentExamples: ParallaxOcclusionMapping "BumpOffset" is one word in multiple locations
Docs - Samples - Jan 20, 2017According to documentation, Bump Offset is 2 words. There are 2 displays that contradict this https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/HowTo/BumpOffset/ ...
[daydream] Black screen with FirstPersonTemplate and 4.15P4
UE - Platform - XR - Feb 17, 2017https://answers.unrealengine.com/questions/561763/daydream-black-screen-with-firstpersontemplate-and.html Any msaa setting except none results in a black 3d scene on daydream. ...