Unreal Engine Issues
Unreal Engine Issues
drag the progress bar in level sequence would crash in debug editor
UE - Anim - Sequencer - Aug 17, 2023it seems in FSequencerTimeSliderController::ComputeFrameTimeFromMouse the CursorPos is -nan ...
Separate translucency rendering and material BumpOffset UV issues
UE - Rendering - Architecture - Oct 20, 2023It appears as if the primary screenpercentage is being sent as the screen size to separate translucency materials, even though separate translucency has its own screenpercentage (r.SeparateTransluce ...
Blending cameras with different post process overrides, doesn't blend the post process correctly
UE - Rendering - Architecture - Nov 2, 2023Crash editor when raytracing is enabled and enter kanji characters into TextRenderActor
UE - Graphics Features - Ray Tracing - Apr 25, 2024The editor crashes when entering Kanji characters into TextRenderActor with raytrace enabled. This does not happen with English text. ...
Case Child Actor Component validation error when set as editor-only
UE - Framework - Components - Jun 4, 2024When a blueprint actor with a child actor component is placed in a level, and the child actor component is set as editor-only, the output log will show a validation error when the actor is moved and ...
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. ...
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. ...