Unreal Engine Issues
Unreal Engine Issues
Curve Table Editor's "Add Key" functionality does not work and appears to not be implemented..
UE - Editor - Aug 5, 2024Creating 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 ...
Sequencer Conditions crash - GarbageCollectionVerification
UE - Anim - Sequencer - Apr 3, 2025Encountered a crash during the garbage collection phase when using sequencer conditions with subsequence tracks. Specifically, objects appear to break the "Disregard for GC" assumptions. ...
Structured log automated decimal number tests fail in languages / cultures that use commas instead of periods
UE - Foundation - Jul 17, 2025The 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, 2025Context 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 ...
Bug - Vertex Interpolator exposing parameters to instance even if its not connected
UE - Rendering - Architecture - Materials - Feb 17, 2026Parameters attached to the input of a Vertex Interpolator Material Expression are visible in the Material Instance, even if the output of the Vertex Interpolator Material Expression is not connected ...
Building lighting fails on Linux without Internet connection
UE - Platform - Linux - Jul 6, 2015Attempting 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, 2015Editor immediately crashes if a variable is set to type Curve Table Row Handle within a structure. Frequency: 2/2 Crashreporter: N/A ...
Running traces consecutively sometimes register incorrect hits
UE - Gameplay - Apr 6, 2015If two line traces are run one right after the other to the same end point but different start locations, at times the second trace will incorrectly register hitting other objects though the trace l ...
Open a level that contains instanced meshes (with built lighting) will crash the editor
UE - Graphics Features - Mar 19, 2015Open a level that contains instanced meshes will crash the editor. Per the users description, the level must have had lighting built and then another level loaded or the editor restarted. Once the ...
Local variables in Blueprint functions don't support default values of Custom Structs
UE - Gameplay - Blueprint - Jun 9, 2015I make a custom struct and assign default values to it's member floats, etc. When I use that in a Blueprint, the defaults work as expected. However, when I reference it as a local variable in a BP f ...