Unreal Engine Issues
Unreal Engine Issues
UAnimNotify::Notify not called during USkeletalMeshComponent interaction with UPhysicsControlComponent when PhysicsBlendWeight is zero
UE - Anim - Synthesis - Physics Control - Mar 30, 2025UAnimNotify::Notify not called during USkeletalMeshComponent interaction with UPhysicsControlComponent when PhysicsBlendWeight is zero. The licensee has provided his analysis of the code: If USkelet ...
UnrealFrontend has missing tooltips in drop down menus
Tools - Aug 17, 2016Unreal Frontend does not have tooltips for the options in the drop down menus. I do not see this with the Project Launcher. REGRESSION: Yes Worked: This previously worked in 4.12.5 Binary CL-30392 ...
Poses do not intially show up in pose tab in Persona
OLD - Anim - Oct 4, 2016The pose asset list does not update unless Persona is closed and opened or if the user searches in the search bar. This is a regression from 4.13.2 Same thing as this old bug: https://jira.it.epic ...
Cannot open Anim Notify Manager
OLD - Anim - Jan 3, 2017Cannot open Anim Notify Manager. Right Click>Manage Notifies doesn't open it and the Manager no longer appears in the Window Menu. Regression: YES Broken: 3224400 (4.14.1) Worked: 3172292 (4. ...
'Random Pitch Angle' not working when 'Collision with World' is enabled for Foliage instance settings
UE - World Creation - Worldbuilding Tools - Foliage - Jan 16, 2017The 'Random Pitch Angle' setting within the Foliage instance settings are being overridden or ignored when 'Collision with World' is also enabled. This occurs in the binary releases of 4.12.5, 4.13 ...
UMG/Slate scroll bars have a minimum size for scaling
UE - Editor - UI Systems - Mar 14, 2017A user has reported an issue about scroll bars having a minimum size in UMG and Slate code, causing them to not scale correctly when the scroll box is at a smaller size. This affects both horizontal ...
[CrashReport] Linux crash - FVulkanCommandBufferManager::WaitForCmdBuffer
UE - Graphics Features - Aug 22, 2017This is a semi-common Linux crash coming out of 4.17.1. It is spread among a few different similar callstack affecting a handful of users. [Link Removed] [Link Removed] [Link Removed] [Link Removed ...
Shader used factories/types/pipelines should be in DDC key
UE - Graphics Features - Jan 31, 2018A licensee noticed that the ShouldCache types for FLandscapeMaterialResource changed in the 4.18.2 but this did not affect the DDC keys generated. This caused an endless compilation loop where the s ...
Welded grandchildren do not overlap properly when their grandparent is simulating physics
UE - Simulation - Physics - Jun 7, 2018Grandchildren (C in an attachment hierarchy of A < B < C) that are auto welded have issues related to overlap events when moving via physics. They tend to overlap later than they should. This does n ...
Web browser widget does not receive input when used in a 3D widget component on Android
UE - Platform - Mobile - Jul 9, 2018Web browser widgets to not receive input when used in a widget component on Android devices Update: Oculus Quest devs attempting to implement and interact with the web browser widget via widget i ...