Unreal Engine Issues
Unreal Engine Issues
Initialization error when creating FEventReply objects from Python
UE - Editor - UI Systems - UMG - Nov 28, 2025the handled value passed to unlock_mouse is actually treated as unhandled, because FEventReply has no uproperty and no Identical()function of its own. Adding WithIdenticalViaEquality can fix this is ...
Crash when BP_LightStage SkyLight Cubemap Resolution changed by spinning value
UE - Graphics Features - Nov 28, 2017Engine crashes when the value in the Cubemap Resolution for the SkyLight component in the BP_LightStage is changed by spinning the value. This asset is found within the Advanced_Lighting map of a B ...
Construction script on child actor components not respected in PIE
UE - Gameplay - Blueprint - Jan 14, 2016Child Actor Components run their construction scripts upon parent's placement in level. However, these specifications are not maintained once PIE is initiated. ...
TUnion implementation is missing
UE - Foundation - Core - Feb 24, 2015The implementation for TUnion is commented out (in Union.cpp) causing it to not function properly. DEFINE_LOG_CATEGORY(LogUnion); has to be added to the user's source file for the VS compille to wo ...
Nativized UMG assets not visible
UE - Gameplay - Blueprint Runtime - Aug 4, 2016Widgets appear and function fine in regular PIE. This may be a result of recent changes to widgets in Dev-Editor. Will regress upon request. ...
User confusion over Visibility/Hidden in Game track
UE - Anim - Sequencer - Sep 6, 2016User confusion over Visibility/Hidden in Game track. We're running into some issues where it's only switching Hidden in Game when you Play, which essentially does nothing with lights, among other p ...
Need to add a project setting to launch a game in VR
UE - Platform - XR - Jun 3, 2016Add a new Project Setting to attempt to launch project in VR by default (e.g. check this setting OR -vr in the UEngine::InitializeHMDDevices() function ...
Soft Object References set directly on parameters are not correctly referenced
UE - Gameplay - Mar 19, 2020REGRESSION: This regressed between 4.23 and 4.24 Assets set directly in a soft object reference pin on a blueprint function are not correctly referenced. ...
Cannot create FBXEportOption in blueprints
UE - Anim - Sequencer - Jan 5, 2021The class UFbxExportOption is not specified as a blueprint type, so it cannot be constructed in blueprints. This class is needed for exporting FBX files from a sequence, which means this functionali ...
Search for references in embedded gameplay tags editor of blueprint editor details panel does nothing
Tools - Sep 22, 2020There is an arrow with a menu that opens when clicked. That menu binds member functions to the widget. The widget is being deleted when the user clicks on the action in the menu, before the action i ...