Unreal Engine Issues
Unreal Engine Issues
"Diff Against Depo" Does not Display Changes to AI Controller Property
UE - Gameplay - Blueprint Editor - Mar 2, 2016When using Diff Against Depot to see changes made to a file since it was last checked in, changes made to the AI Controller default property are not displayed under the defaults section. Found in ...
Actors animated with sequencer cause "Begin/End Overlap" events to fire every tick
UE - Anim - Sequencer - Jul 18, 2016Actors animated with sequencer cause "Begin/End Overlap" events to fire every tick while overlapping another actor ...
KiteDemo: Bookmark spawn function broken if in Run mode
Docs - Samples - May 4, 2017While testing in KiteDemo - //UE4/Release-4.16 CL 3420042 in Binary – I found that pressing the bookmark attraction Scene keys (1 - 0) does not work as intended if user is in Run mode. ...
Android.NewKeyboard CVar doesn't work
UE - Platform - Mobile - Jun 1, 2017Android.NewKeyboard cvar doesn't behave as documented. ...
Setting Fullscreen Mode to "Fullscreen" results in Crash when using 4.23 from source
UE - Rendering Architecture - RHI - Oct 11, 2019Changing the screen settings to Fullscreen through code or blueprints results in a crash. This only happens in the source version of 4.23 and does not occur in the binary version of 4.23. I have att ...
Global SkyAtmosphere and Clouds Issues (Ambient Light)
UE - Graphics Features - Dec 3, 2024Ambient Light on Volumetric Clouds from Sky Atmosphere always is calculated as if the clouds are at the north pole of the planet. Using a sphere-shaped Sky Atmosphere and Volumetric Clouds causes t ...
Light Leak Issue in Modular Buildings (Lumen HZBTraversal)
UE - Graphics Features - Lumen - Oct 14, 2025Starting in Unreal Engine 5.6, disabling "r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal" can lead to light leaking between adjacent or overlapping meshes. Also tested on Release-5.6, CL: 4523 ...
Multi Sphere Trace is not returning the correct Impact Location
UE - Simulation - Physics - Jan 19, 2015Multi Sphere Trace is not returning the correct Impact Location. Other AnswerHub Report:https://answers.unrealengine.com/questions/30952/multisphere-trace-fhitresult-location-same-as-impa.html ...
Integrity of AnimSyncMarkers compromised while playing AnimMontage with root motion in server side
UE - Anim - Gameplay - Jan 11, 2023Reference UDN as it explains well the cause of the issue. ...
CableComponent particles spawn at origin when gameplay starts depending on component registration order
UE - Framework - Components - Jan 9, 2025A workaround was provided for the user, to use 'Set Attach End to Component' nodes during BeginPlay. While this fixes the issue in gameplay, the editor preview no longer syncs with gameplay. ...