Unreal Engine Issues
Unreal Engine Issues
[Niagara] Sampling static mesh location throws error
UE - Niagara - Feb 3, 2021Standalone window played from editor hits assert Index >= 0 in UObjectArray
UE - Gameplay - Blueprint - Sep 23, 2016Standalone window in editor will hit assert in a bit of time. Issue doesn't happen is playing standalone via Visual Studio. ...
Deleting static mesh that is used by foliage tool in content browser then selecting foliage window crashes editor
UE - World Creation - Worldbuilding Tools - Foliage - May 11, 2015If a static mesh is being used by the foliage tool and then deleted in the content browser, the foliage tool will retain a copy of the object and crash the editor if the foliage window is selected a ...
Memory Leak When Raytracing Enabled with Specific Rendering Settings
UE - Graphics Features - Ray Tracing - Apr 8, 2025When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...
Crash when converting non-WP maps containing landscape with OnlyMergeSubLevels enabled
UE - World Creation - Worldbuilding Tools - World Partition - Jul 21, 2023When trying to convert a non-WP map with OnlyMergeSubLevels enabled crash after a while ...
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 ...
Force Feedback not pausing correctly during bGamePaused
UE - Gameplay - Jul 26, 2016From UDN Question: https://udn.unrealengine.com/questions/304392/bug-clientplayforcefeedback-isnt-paused-when-game.html Tried with GamePad and Vive Controllers, having Gamepad wire connected + 2 Vi ...
Huawei P9 Plus screenshots capture black
UE - Platform - Mobile - Jul 18, 2017OBSERVED RESULT: UE4 captures an all black screen EXPECTED RESULT: Game window should be captured with any debug information that is being printed to the screen WORKAROUND: None IMPACT: Blocks S ...
Reset to default arrow doesn't appear for BP Struct variables in Blueprints
UE - Gameplay - Blueprint Editor - Sep 22, 2017When a variable of a struct is added to a blueprint, the reset to defaults arrow does not appear when the variable values and struct defaults differ. Note: A child of (or placed instance of) the bl ...
Foliage Not Updating to Match New Landscape Height After Level Save-As
UE - World Creation - Worldbuilding Tools - Foliage - May 3, 2018I have observed this behavior in 4.18.3, 4.19.2, and Main (CL 4048405) Per User: I made a landscape, painted some foliage and saved the scene. After I saved the same scene under different name the ...