Unreal Engine Issues
Unreal Engine Issues
Crash when editing FRuntimeFloatCurve's curve from sequencer's edit key window
UE - Anim - Sequencer - Mar 31, 2023Crash when editing a FRuntimeFloatCurve curve exposed through EventTrack or a self-made Struct from the sequencer key edit window. FRuntimeFloatCurve does not support Expose to Cinematic, so this m ...
Blend Stack node doesn't have a valid FDeltaTimeRecord
UE - Anim - Runtime - Apr 19, 2024The blend stack node doesn't generate any values for its DeltaTimeRecord. This can be tested with the fix for [Link Removed] shelved at 32747789. Since there isn't a tick record directly associate ...
Add Substrate Material Support to Lumen Performance Overview
UE - Graphics Features - Substrate - Feb 10, 2025There is a discrepancy when inspecting Substrate materials in the Lumen Performance Overview. Compared to viewing non-Substrate materials the overview show all surfaces in red indicating that Lumen ...
Cannot move instances of a hierarchical static mesh component in the blueprint editor viewport
UE - Gameplay - Components - Apr 12, 2016Can move individual mesh instances of a regular instanced mesh component in the blueprint editor, but not hierarchical ones. Originally reported as a pull request in [Link Removed], but we rejected ...
Landscape components render black
UE - LD & Modeling - Terrain - Landscape - Dec 1, 2016Workaround:Open the Landscape Material and click SaveReload the level Landscape components render black upon first-time compile. Observed in QA-Landscape - several chunks of the Landscape were bla ...
Ensure fires during nativized build while packaging for any BP class based on UAnimNotify
OLD - Anim - Oct 25, 2018Cooking will fail while attempting to convert a non-data-only Blueprint class based on the native UAnimNotify class when Blueprint nativization is enabled. Workaround in lieu of a fix would be to e ...
Wireframe Appears Aliased and Draws Behind the Editor Grid
UE - Graphics Features - Jan 10, 2019When the Editor grid is enabled, it draws over the wireframe objects. This is especially clear in orthographic views where the grid completely obscures wireframe lines aligned to the grid placement. ...
GPU Particle Preview Flickering with Distance Field Collision
UE - Niagara - Jan 15, 2019When switching from Scene Depth Collision to Distance Field Collision for a GPU particle system the preview window flickers, but returns back to normal when switching back to Scene Depth. Found in ...
Niagara System User Parameters Resetting After Closing the Editor
UE - Niagara - Jan 18, 2019Niagara System user paramemters will reset upon restarting if they are used in a Blueprint. This also occurs to the system if you move the blueprint after making changes then pressing Ctrl+Z. Foun ...
Meshes With Multiple Morphs / Blendshapes Import Incorrectly
OLD - Anim - Jan 31, 2019MorphTargets/BlendShapes are read from the scene, not the morpher modifier. This also results in blendshapes names being equal to morph target object name (objects), rather then names from morpher m ...