Unreal Engine Issues
Unreal Engine Issues
Making a navigation system 'strictly static' affects all subsequently created navigation system instances
UE - AI - Mar 26, 2020The problem is a result of two things: UNavigationSystemV1::bStaticRuntimeNavigation being staticUNavigationSystemModuleConfig::UpdateWithNavSysCDO copying the data from nav sys CDO, including bStat ...
Migrating a project from UE5.2 to UE5.3.1, there was a difference in the navmesh generated on HISM
UE - AI - Navigation - Oct 24, 2023HISM is generated by ConstructionScript Actor is placed on the level and navmesh is generated on top of HISM. In UE5.2, the navmesh was generated without splitting on the HISM. In UE5.3, a break occ ...
LOD glitch when using Control Rig with Import Skeleton node
UE - Anim - Rigging - Control Rig - Aug 26, 2025In Unreal Engine 5.6 and Main, a glitch occurs when switching between LODs in a character setup that uses a Control Rig to dynamically load the skeleton hierarchy through the Import Skeleton node in ...
Geometry Collection behavior does not change when changed by BP
UE - Simulation - Physics - Destruction - May 2, 2022Reproduced 6/6 times. This seems to affect all "Set" functions for Geometry Collection Components, such as Setting Object Type from Static to Dynamic, or changing Collision Type. ...
'Render static' flag crashes editor in OpenGL ES3.1 shader complexity view mode
UE - Platform - Mobile - Mar 19, 2020https://udn.unrealengine.com/questions/563316/render-static-flag-crashes-editor-in-opengl-es31-s.html ...
[Audio Modulation]- Modulation of Pitch Destination on a Source Bus with a Parameter Patch affects Volume instead
UE - Audio - Modulation - Mar 20, 2024Stepping in the inner area updates the Control Bus on the Patch, but the Modulation is applied to the Volume destination instead of Pitch. Reproduction rate: 5/5 This also occurs in //UE5/Release- ...
Crash launch application adding .umap url
UE - Foundation - Core - Aug 6, 2020The application crashes when adding ".umap" to the launch map at application launch. If not specify ".umap", it will be able to launch application. There appears to be a failure to parse the URL. Th ...
User Play Space Rot does not change anything in Client Play Camera Shake
UE - Gameplay - Jun 11, 2015User does not change anything in Client Play Camera Shake. Reproduced in 4.8 and Main (//depot/UE4/Promotable-CL-2581498). This is a Regression: it works as expected in 4.7.6 ...
Landscape material doesn't show correctly on ES3.1 if Landscape layer blend was implemented by using in Material function
UE - LD & Modeling - Terrain - Landscape - Jan 30, 2019Open the project attached to see the issue ...
Regression: Asset Action Utility "Supported Classes" setting is not working correctly when "IsActionForBlueprints" is true
UE - Editor - Workflow Systems - Aug 16, 2024When creating an Editor Utility Blueprint derived from "Asset Action Utility", UE allows the user to override function "IsActionForBlueprints". When it returns true, the "Supported Classes" setting ...