Tools>Debug>Modules button may not appear

UE - Editor - Workflow Systems - Oct 26, 2022

This is due to Plugin loading order. If the EditorDebugTool plugin is loaded before *SourceCodeAccess( in exsample : VisualStudioSourceCodeAccess ) plugin is loaded, CanShowModulesTab() returns fals ...

Crash when locate_bound_objects is called

UE - Anim - Sequencer - May 14, 2024

This has been tested internally using an editor utility widget yielding the same results. That small project is attached. BoundingObjectTest. 1) Open the project 2) Run the Editor Utility Widget ...

Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False

UE - Rendering Architecture - Aug 8, 2025

The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...

Custom data update crash - invalid memory when removing an instance from a UHierarchicalInstancedStaticMeshComponent

UE - World Creation - Worldbuilding Tools - HLOD - May 3, 2022

This is a race condition, did not crash with -onethread. Attached the collected threaded callstacks, although they look misaligned. Licensee has provided a suggested fix. ...

Type promotion should handle UObject subclass custom operator functions

UE - Framework - Blueprint Editor - Jun 7, 2022

We should modify FindBestMatchingFunc_Internal for the case of UObject pins to search for a best matching subclass instead of just use the base UObject comparison.  We could also exclude any func ...

Sequencer will not play Blendshape (Morph Target) Animations while in Realtime

UE - Anim - Sequencer - Mar 16, 2016

An Animation Track that references a Blend Shape, Morph Target, Animation will not play when you play from Level Sequencer in Editor unless you turn off real time. Also it seems if Realtime is turn ...

Typo in Checkbox description

Tools - Nov 11, 2014

Under Project settings > Packaging>"For Distribution" when the user scrolls over this area, the pop up description reads "...If disabled, an development build will be created." ...

Creating Destructible with PhysXLabs and Fracture Tool in UE4 yield different results and same settings

UE - Simulation - Physics - Destruction - Feb 25, 2015

When creating fracturing a mesh in PhysXLabs vs UE4 fracture tool with both using Voronoi fracture and set to 25 chunks will give different results. The mesh (Attached below along with reference i ...

Problem in deleting multiple node objects in Animation Sequence

OLD - Anim - Jan 10, 2019

From what I could see this is different than JIRA issue [Link Removed]. All the selected nodes information seem correct until the NodeObject->Delete(Sequence) in SAnimNotifyPanel::DeleteSelectedNod ...