Unreal Engine Issues
Unreal Engine Issues
When using Blueprint Update Camera, New Camera FOV is taken into effect even if Return Value is false
UE - Gameplay - Oct 30, 2017In a Player Camera Manager Blueprint, when overriding the function BlueprintUpdateCamera, the New Camera FOV value takes effect regardless of whether Return Value is True or False. The New Camera Lo ...
Shadows flicker when Forward Rendering is enabled alongside Lumen
UE - Graphics Features - May 26, 2021When enabling Forward Shading in a project while using the Lumen Global Illumination system, the shadows in the viewport begin to flicker and occassionally entire meshes may appear black. The lighti ...
Unnatural de-overlap occurs when moving inside a mesh-type collision located far from the origin
UE - Simulation - Physics - Jan 8, 2025The problem appears to occur when the distance from an edge is mixed with positive and negative values in VectorEPA function. The following workaround is suggested that uses absolute values of dista ...
[CrashReport] UE4Editor_UnrealEd!SaveWorld() [filehelpers.cpp:359]
Tools - Aug 31, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: !bIsReentrant [L ...
Motion Controller meshes do not track with Motion Controller position within VRMode
UE - Platform - XR - Feb 8, 2019This is a regression from release 4.21.2 Motion controller meshes are present in the level, they just aren't tracking alongside the motion controls. Motion controls still function as intended othe ...
GeometryCaches don't implement CreateHitProxies to create a unique hitproxy per section/material
UE - Editor - Content Pipeline - Datasmith - Sep 3, 2021This causes the ObjectId pass in MRQ to fail to distinguish between materials in the resulting Cryptomatte file. It looks like FGeometryCacheSceneProxy doesn't implement CreateHitProxies so it's f ...
Objects do not Scale relative to their Temporary Pivot Point (Alt+MMB Click)
Tools - Mar 19, 2015After temporarily moving the pivot point (Alt+Middle Mouse Click on the center of the translate tool), you can switch to scale. However, the object still scales from it's original (permanent) pivot ...
Linux editor windows are completely black
UE - Platform - Mobile - Apr 10, 2017All of the editor windows are completely black on the Linux machine with the exception of the splash screen. This occurs for the Unreal Project Browser, toast windows and game windows. The functio ...
Creating SplineMeshComponents along Spline causes crash
Tools - Aug 22, 2018Attempting to procedurally create SplineMeshComponents along the spline of a SplineComponent via a derived SplineComponent class's constructor causes the project to crash. It runs into an ensure mes ...
D3D12RHI keeps increasing uniform buffer memory with "stat RHI"
UE - Rendering Architecture - RHI - Oct 25, 2019If any skeletal meshes are not displayed, it stops increasing. Allocation count of uniform buffer is stable. added on February 26 Followings are an additional information from licensee. FD3D12 ...