Zipping up projects with / creates folders to nest the zip in

Tools - Oct 15, 2015

Changing your project name from 'MyProject.zip' to 'MyProject 1/1/1/1/1.zip' creates a folder which nests another folder that eventually leads to the zip. ...

Regression: FAnimInstanceProxy memory leak when BeginDestroy() called on UAnimInstance before USkeletalMeshComponent

UE - Anim - Runtime - Feb 10, 2025

In UE 5.5, the fix applied by CL 36529858 in ue5-main updated USkeletalMeshComponent::ClearAnimScriptInstance() to call AnimScriptInstance::UninitializeAnimation() on the animation instance. This, i ...

Moving Child Object in Local Space Causes Flickering

Tools - Jun 30, 2016

When moving an object in the viewport that is parented to another object with a scale of -1,1,1, the child object will flicker. This is a regression, this did not occur in the 4.11.2 binary release ...

SSR doesn't reflect Skydome Mesh/Material correctly in Vulkan mobile preview

UE - Platform - Mobile - Aug 4, 2025

5.6[Image Removed] 5.5[Image Removed][Link Removed] ...

Animation to Ragdoll: Character blinks for 1 or more frames

UE - Simulation - Physics - Mar 4, 2016

Character is not rendered for frame between Death animation and conversion to ragdoll physics In the linked movie, if you pause at the 34 second mark and play frame by frame, you will see the chara ...

Crash When Typing a Node Comment and Hovering Over the Alignment Option

Tools - Apr 5, 2016

Error message: Assertion failed: ParentIndex != INDEX_NONE [Link Removed] [Line: 512] Source Context: 499 } 500 501 return Menu; 502 } 503 504 ...

USD Stage Import - Spawned actors by USD importer are not saved in level

UE - Editor - Content Pipeline - USD - Jul 20, 2023

we ran into an issue with USD Importer plugin for Unreal 5.2. When you import a USDStage with the "actors" import option - which respawns the newly imported actors into the current level.  However, ...

On the Details Panel of Niagara Function Inputs, the Type selector does not show "Static" types.

UE - Niagara - Apr 7, 2025

Consider a Niagara Function or Module Script containing a Static Switch node. If the "Expose as Pin" option is enabled for its selector variable, an input pin with type "static bool" appears. In one ...

SteamSockets not setup to handle Client/Session ID handshakes

UE - Online - Jan 13, 2023

Repro Rate: 3/3 This is a live issue where the customer claims that the SteamSockets implementaton is not setup to handle the new Client and Session Id setup that was introduced in 5.1. This issue ...

RuleProcessor is not listed in the Window menu in 5.4

UE - Editor - Workflow Systems - Jun 11, 2024

Since CL-28416011, Sections in Window menu are broken and the RuleProcessor can not be registered in the menu. (See attached imanges) Following workaround restores the sections and fixes the issue. ...