Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_Landscape!ULandscapeInfo::UnregisterActor() [landscape.cpp:1856]
UE - LD & Modeling - Terrain - Landscape - Sep 21, 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: LandscapeActor.I ...
Adding a code class to a blueprint project causes the editor to crash
UE - Foundation - Core - Oct 5, 2017Adding a code class to a blueprint project causes the editor to crash after attempting to hot reload. This only occurs for a fully bluprint project, code projects or BP projects that have already h ...
Edited BP Variables show as "Multiple Values" in instanced reference
UE - Gameplay - Blueprint - Oct 30, 2017When a blueprint (A) contains a instanced reference to another blueprint (B) that is EditInlineNew, changing a value B causes the associated variable in A to display as "Multiple Vaules" Workaround ...
Changing Value of Current Focal Length In Details Panel Has No Effect When Played in Standalone
UE - Graphics Features - Nov 14, 2017In TestPawn_BP in the details panel, when Current Focal Length is changed, there is no visible change when played in Standalone Game. -Could not test in 4.17 due to the ARToolkit Component was not ...
Sine Wave audio plays choppy in editor
UE - Audio - Dec 4, 2017Playing a sine wave as an audio sample in the editor produces a choppy sound when it does not outside of the editor. This issue does not appear to be a regression. Versions Tested: Issue occurs in ...
GoogleVR rotational input stuttering after disabling stereo rendering
UE - Platform - Mobile - May 16, 2018In a Google VR project, stuttering occurs when switching from stereo rendering to mono. Seems less like performance and more of a sensor input problem? 4.17 - No repro 4.18 - Unable to package (Ma ...
Movement Tolerance for Spawn Per Unit Does Not Function
UE - Niagara - Oct 19, 2018Motion tolerance for Spawn Per Unit does not affect the particle system. Even if the vaules are set very high. Found in 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Preview 2 CL# 4472 ...
Blueprint Editor Show Grid does not toggle the grid in the viewport
UE - Editor - Workflow Systems - Oct 28, 2020The grid in the blueprint editor is not able to be hidden via the Show Grid flag in the viewport dropdown. This has regressed sometime in //Ue4/Release-4.25 as I cannot reproduce this issue in //UE4 ...
3D Grass may not appear in Path Tracer renders
TM - Rendering - Sep 19, 2025Reported in SF [Link Removed] Path Tracer renders of images with 3D grass may not display 3D grass in the foreground of an image. The 3D grass material will not appear or may appear to cut off at s ...
Ensure opening TM-ShaderModels in DirectX10
UE - Graphics Features - Jul 11, 2017Ensure occurs opening TM-ShaderModels in DirectX10. This does not occur in 4.16.2 ...