Curve Table Editor's "Add Key" functionality does not work and appears to not be implemented..

UE - Editor - Workflow Systems - Aug 5, 2024

Creating a new Curve Table asset, and then trying to use the right-click menu "Add Key" option does not do anything. FRealCurveModel still has the function, but it is left intentionally empty despit ...

All objects imported through Interchange use smooth shading.

TM - Interoperability - Dec 7, 2023

[Image Removed] It imports correctly in UE with interchange import:[Image Removed] ...

Structured log automated decimal number tests fail in languages / cultures that use commas instead of periods

UE - Foundation - Jul 17, 2025

The following Localisation Tests in "Engine\Source\Runtime\Core\Tests\Logging\StructuredLogFormatTest.cpp:275" TestLoc(LOCTEXT("Float", " {Float} "), ANSITEXTVIEW(R"(128.25)")); TestLoc(LOCTEXT ...

Call In Editor functions not working in blueprints

UE - Editor - Developer Usability - Dec 19, 2025

Context When selecting a component on an actor, any CallInEditor functions on the component's class appear as buttons in the details panel. Problem The CallInEditor functions don't execute in Blu ...

Tooltips not appearing in Editor when hovering over assets due to Slate Cursor Move settings

UE - Editor - UI Systems - Slate - Feb 3, 2026

User noticed that when Slate.EnableSyntheticCursorMoves is set to false the editor UI tooltips no longer display. As noted by the user, modifying Slate.CursorSignificantMoveDetectionThreshold to at ...

Building lighting fails on Linux without Internet connection

UE - Platform - Linux - Jul 6, 2015

Attempting to build lighting will stay at 0% and eventually fail if there is not internet connection for the computer. ...

Setting struct variable to CurveTableRowHandle crashes editor

Tools - Sep 9, 2015

Editor immediately crashes if a variable is set to type Curve Table Row Handle within a structure. Frequency: 2/2 Crashreporter: N/A ...

Array inputs in Custom Events cause a compiler "note"

UE - Gameplay - Blueprint - Sep 1, 2015

Array inputs in Custom Events cause a compiler "note". On compile, "NOTE" is added to the node, and this appears in the Compiler Results: "Info No value will be returned by reference. Parameter 'Lis ...

Setting World to Meters in the World Settings to a large number will cause the console to show incorrectly in VR

UE - Platform - XR - Jan 4, 2016

If the User changes the "World to Meters" setting in the World Settings this will cause the console to appear offset when brought up in VR. Note: the number used was 3600 ...