Unreal Engine Issues
Unreal Engine Issues
Landscape Grasstype warning causes log spam when landscape is streamed in or out
UE - LD & Modeling - Terrain - Landscape - Nov 16, 2016Using the Landscape Grasstype will generate log spam for the number of Landscape components being used or if using World Composition will generate a log warning for each tile used. The warning ind ...
Crash when using Set Collision Response on a Destructible component
UE - Simulation - Physics - Destruction - Dec 20, 2016Crash when using Set Collision Response on a Destructible component. The repro is using the Construction Script but this also happens using Event Begin Play in the Event Graph on play. It crashing ...
In the level editor, when configuring a component that is part of an actor blueprint, adding entries to a TMap with C++ enum keys results in duplicate keys and an incorrect warning popup.
UE - Editor - Jan 22, 2026Note: This started happening in UE 5.4 and persists up to latest. It is probably related to [Link Removed] Closed ([Link Re ...
Copying a grouped MaterialInstanceParameterDetail property that has spaces on it's name does not enclose it in double quotes, and later pasting won't work as expected
UE - Rendering - Architecture - Materials - Aug 24, 2025Copying a grouped MaterialInstanceParameterDetail property that has spaces on it's name does not enclose it in double quotes, and later pasting won't work as expected. The licensee noticed this in a ...
Slowly flickering display in GearVR
UE - Platform - XR - Jul 12, 2017The appears repeatedly in the log:[2017.07.12-14.57.06:022][ 4]LogHMD: Initializing OVRPlugin session [2017.07.12-14.57.06:652][ 4]LogHMD: Setting user focus to game viewport since session status ...
Selection outline not visible when actor is selected on certain AMD GPUs
UE - Graphics Features - Apr 18, 2017When selecting an actor in the viewport, some AMD GPU users are reporting that the selection outline is not visible. Rolling drivers back to 17.1.1 correct the behavior.| Two EngineQA tester have ...
Crash when travelling during ability activation when URL contains "#"
UE - Framework - Jul 18, 2025This issue is related to [Link Removed], where the "?listen" option sent on the URL to clients could cause issues with RPCs being called locally during travel. The fix to remove the "?listen" option ...
Sequencer does not save asset variables in event struct
UE - Anim - Sequencer - Jul 31, 2018When adding a struct to a keyframe, Object Reference variables are not saved and Soft Reference variables are saved sometimes. Opening a keyframe's properties when the selected struct has an object ...
Fail to compile with Added AIController class
UE - Foundation - Core - Jan 14, 2015User fails to compile code template after adding AIController code to project. Regression: Not a regression happens in 4.6.1 CL-2386410 Setting up Mono Building MyProjectEditor... Compiling game m ...
Foliage frustum cull based on incorrect bounds size
UE - World Creation - Worldbuilding Tools - Foliage - Aug 22, 2016When changing the static meshes of a Foliage instance by swapping the mesh or changing the scale (build settings) of the mesh, the bounds for the mesh do not appear to update to use the new bounds. ...