Unreal Engine Issues
Unreal Engine Issues
User defined struct variables with spaces do not import properly in cooked builds
UE - Gameplay - Blueprint - Aug 11, 2020DataTables exported to JSON in editor (UDataTable::WriteTableAsJSON, accessible by right clicking a data table and picking export to json) that contain variables with spaces or other outlawed charac ...
SetEditorProperty does not propagate changes to loaded children blueprints
UE - Editor - Verse Class Editor - Feb 8, 2021Changes on the Blueprint Editor are immediately propagated to the child blueprints. ...
Level instance in unloaded data layer stays loaded.
UE - World Creation - Worldbuilding Tools - Level Instances - Sep 19, 2022Groom renders black through Single Water Layer materials
UE - Graphics Features - Jan 9, 2023Regression: Tested in UE5/Release-5.0, this issue occurs so this is not a regression ...
Mover standalone backend allows non-persistent sync structs to carry over between frames
UE - Gameplay - Player Movement - Mover - Jul 16, 2025Only certain sync state structs are intended to persist between frames. These are configured via MoverComponent's PersistentSyncStateDataTypes array. There appears to be a bug in the way the standa ...
Camera behavior during "Orbit Pan Mode" (Alt+MMB+Drag) is wrong while piloting an actor
UE - Editor - Developer Usability - Nov 18, 2025In the Level Editor, dragging the mouse while the "Alt" key is pressed performs one of the "Orbit" movements: OrbitRotation, OrbitPan, OrbitZoom. The same can be done while Piloting an actor. Howev ...
Foliage does not spawn on Hierarchical Instanced Static Mesh Components
UE - World Creation - Worldbuilding Tools - Foliage - Jul 3, 2015Foliage does not spawn on Hierarchical Instanced Static Mesh Components ...
Error for having an extra semicolon before a UPROPERTY declaration is not thrown inside of a USTRUCT
UE - Foundation - Core - Oct 26, 2016Having an extra semicolon on the line before declaring a UPROPERTY will cause UHT to miss parsing the following UPROPERTY. This is expected, but an error is usually given when this is the case. This ...
MoviePipeline: Panoramic Renders don't work
UE - Anim - Sequencer - MRQ - Nov 10, 2022Images aren't just under exposed, they have values of 0.0 even in exrs - enabling the Debug Settings and writing out all samples shows the GPU is actually rendering black. ...
Based movement ticking dependency may be incorrect if standing on a part of a Child Actor
UE - Gameplay - Player Movement - Jan 31, 2024When an actor has a Child Actor Component that's a valid moving base for a character to walk on, the ticking prerequisites are set against the Child Actor and not the root owning actor that actually ...