Unreal Engine Issues
Unreal Engine Issues
Bug: Level Sequence OriginOverrideLocation not propagating to newly added nested ShotTracks
UE - Anim - Sequencer - May 14, 2025Within a Level Sequence, it's possible to override the transform (OriginOverrideLocation) of a ShotTrack. This generally works as expected — all nested ShotTracks should inherit and apply the transf ...
When using Drag and Drop UMG, Projects deployed to devices will crash once the UMG is touched and moved
UE - Editor - UI Systems - Dec 30, 2014When using Drad and Drop UMG with iOS via the information provide in the forum thread, the project will crash on the device it is deployed to when dragging the UMG ...
[bug] OIT doesn't work correctly with alpha composite blend mode
UE - Graphics Features - Substrate - Mar 4, 2025When using OIT, AlphaComposite Materials blend as if they are using the Translucent BlendMode. The order of macro #if … #elif cases cause AlphaComposite Materials to take the same route as Transluce ...
Project cannot build in VS 2017 15.8+ if it uses std::make_shared with an over-aligned type
UE - Foundation - Core - Aug 30, 2018Visual Studio 2017 15.8 includes a fix to properly handle std::make_shared used with over-aligned types. However, this is a breaking fix and requires the definition of one of two macros to either ac ...
Setting child actor component offset breaks child component variables set in parent constructor
UE - Gameplay - Blueprint - Sep 6, 2016If a child actor component has a local offset from the parent, any of the child's variables that are set in the parent's construction script are not registered. Workaround: Setting child variables ...
'Directions are not Compatible' error on ForEachLoopWithBreak if split struct pin is disconnected from Enum type
UE - Gameplay - Blueprint - Mar 25, 2015'Directions are not Compatible' error on ForEachLoopWithBreak if split struct pin is disconnected from Enum type. Note: If the pins are reconstructed and the resplit, the error is fixed. ...
Atmospheric Fog cannot be toggled to hidden in the Scene Capture 2D's detail settings
UE - Graphics Features - Apr 7, 2015Atmospheric Fog cannot be toggled to hidden in the Scene Capture 2D's detail settings. All other setting will toggle correctly. ...
ILC/VLM doesn't affect Static Staticmesh at all on Mobile
UE - Platform - Mobile - Sep 23, 2019In practice, developer wants some Static-Staticmesh actors don't build lightmaps to save iteration time as well as Memory and Package size; but still want lit by Indirect lightings ...
IOStore : Packaged game crashes when doing garbage collection right after cancelling async loading by UnloadPrimaryAssetList
UE - Foundation - Core - RuntimeLoader - Mar 15, 2021Packaged game without IOStore never hits this error. ...
NiagaraSystem is compiled every time when first loaded in the editor
UE - Niagara - May 20, 2022If you are using a large amount of Niagara, you will experience excessive load times in PIE even if nothing is changed. The following code change seems to be effective as an interim response. void ...