Unreal Engine Issues
Unreal Engine Issues
Soft actor references can no longer be set in DataTables
UE - Gameplay - Blueprint Editor - Feb 9, 2021As part of [Link Removed], it was changed so soft actor references cannot be set in the editor for structure defaults. This is desired because the serialization behavior for defaults is complicated ...
[AI] StateTreePropertyRef does not have option for Promote to Parameter
UE - AI - StateTree - Nov 5, 2025I got a report from one of my designers that since we took 5.6, they have been unable to see the "Promote to Parameter" options when attempting to bind an output from one of our common tasks. I took ...
InlineEditConditionToggle behavior present for UProperties even when InlineEditConditionToggle property specifier is not used
UE - Editor - Jun 6, 2024Reported by customer: It seems like in some cases, even when the InlineEditConditionToggle property specifier is not used, the behavior it enables is turned on anyway. It's possible to disable it w ...
[CrashReport] UE4Editor_Engine!operator new<FBatchedLine,FDefaultAllocator>() [array.h:2812]
OLD - Anim - Jun 2, 2016Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 804] Array index out of bounds: 175 from an array of size 171 Source Context: 2797 2798 temp ...
The "alignas" keyword cannot be used with a USTRUCT
UE - Foundation - Core - Oct 24, 2018The alignas keyword is not usable with a USTRUCT. It can be used with a normal struct. ...
Adding a code class derived from SceneCaptureComponent2D to a project will prevent that project from building successfully in Visual Studio.
UE - Graphics Features - Dec 9, 2014Adding a code class that derives from SceneCaptureComponent2D will cause the build to fail in Visual Studio. Build Errors: 1>MySceneCaptureComponent2D.cpp.obj : error LNK2001: unresolved external ...
FInstancedStruct member uproperties are not cached when "Generate Optimized Blueprint Component Data" is enabled
UE - Framework - Blueprint - Nov 18, 2025A licensee has encountered an issue where their FInstancedStruct isn't being gathered into CachedPropertyData when "Generate Optimized Blueprint Component Data" is enabled. The changes in [Link Remo ...
Make Dialogue Context node no longer has the speaker and targets options exposed
UE - Gameplay - Blueprint - Aug 8, 2017The Make struct node for Make Dialogue Context no longer has the "Speaker" and "Targets" pin exposed. ...
Crash when opening a data table that references itself in a data table row handle
UE - Editor - UI Systems - Localization - Jun 30, 2016The Editor crashes when a data table references itself by using the data table row handle setting in a struct ...
[AI] FInstancedStruct is not dupilicated properly if values are different from an Actor's defaults
UE - AI - Jan 24, 2024A licensee reports that the values of an FInstancedStruct do not get properly duplicated if they differ from the default values of the Actor or TArray to which they belong. Possible short-term wo ...