Unreal Engine Issues
Unreal Engine Issues
Renaming an AnimNotify does not redirect event nodes to the new name
OLD - Anim - Apr 10, 2015Renaming an animNotify in the Animation Notifies window (Window>Animation Notifies) does not redirect existing event nodes to the new name. It also doesn't appear under the Right Click menu in the ...
Viewport camera teleports to past position on Alt + LMB + Drag after camera cut lock
UE - Anim - Sequencer - Apr 13, 2018When you unlock the viewport from "Lock viewport to Camera Cuts" of a camera cut, tumbling the camera can teleport the view into the camera's previous(before entering the camera cut) position and tu ...
On mouse Down not firing for left click on Button widgets when using precise click
UE - Editor - UI Systems - Aug 31, 2017When using the left mouse button to click and drag a button, the on drag detected will not fire even when using precise click. This was not the case in previous versions of the engine (Works as expe ...
Variant Manager: LevelVariantSets asset corruption after rename or duplicate
UE - Editor - Content Pipeline - Oct 24, 2025When renaming or duplicating a LevelVariantSets asset that contains a Director Blueprint, the internal DirectorClass reference becomes mismatched. Although the DirectorBlueprint pointer updates corr ...
MRQ - Black output layers in multichannel exr with a multi-camera cuts track
UE - Virtual Production - Tools - MRQ - Mar 14, 2025If you have Render All Cameras enabled in MRQ and are rendering a multilayer exr from a sequence that has multiple cameras edited in the camera cuts track the frames where a camera is not active in ...
When a Niagara User Parameter is renamed, mesh bindings on Niagara Mesh Renderers are not updated, and the binding is silently broken
UE - Niagara - Mar 13, 2025In Niagara, Mesh Renderers expose a "Meshes" array for selecting the meshes to be rendered. On each array entry, a property "Mesh Parameter Binding" is available and allows the user to override that ...
Cannot Delete Landscape with World Partition enabled
UE - Graphics Tools - Terrain - Landscape - Jan 12, 2023If you delete all the LandscapeStreamingProxies under the landscape object the parent landscape object can be deleted. Not a regression checked in Version: 5.1.0-23058290+++UE5+Release-5.1 ...
Mouse position no longer updates after clicking and holding on a button
UE - Editor - UI Systems - Jan 19, 2015If the user clicks a button and does not release the mouse button, the mouse position will no longer update until the user releases the mouse button that is being held down. This could cause issues ...
On mouse down only fires with a double click for Left mouse button with certain input settings
UE - Editor - UI Systems - Slate - Jun 29, 2017The left mouse button press does not act as expected when the input setting "Default Viewport Mouse Capture Mode" is set to "Capture During Right mouse Down" TLDR: Left mouse button press fires wh ...
Slight delay when switching between UMG buttons on Mac
UE - Editor - UI Systems - Dec 30, 2014There is a slight delay when clicking between two different UMG buttons on Mac. Tested on OSX 10.10.1. There also appears to be a flicker on the Menu Bar. ...