Circular Throbber does not appear to be affected when setting the tint

UE - Editor - UI Systems - Jan 25, 2016

Circular throbber does not appear to change colors when changing the tint ...

Collision Viewmodes do not affect Instanced Meshes properly

UE - Graphics Features - Apr 9, 2018

Collision View modes, such as Player Collision and Visibility Collision, do not work with Instanced Static Meshes. Regression?: No This also occurred in 4.18 ...

ChaosDestructionDemo packages cannot be created in 4.25.1

UE - Simulation - Physics - Jul 17, 2020

Editor crash when the renderdoc.captureframecount is set more than 1

UE - Rendering Architecture - RHI - Jun 27, 2023

Crash when exporting static mesh actor to FBX (Array index out of bounds)

UE - Editor - Content Pipeline - FBX - Apr 25, 2025

I set the Forced LOD Model on the mesh component > 1, then tried to export, this is what causes the crash. Here is my suggested fix, we just don't use Git or I'd do a PR: In the else() branch of FF ...

Soft angular constraints solve velocity like hard constraints

UE - Simulation - Physics - Jul 17, 2025

Soft angular constraints are solving velocity like hard constraints. Instead of swinging back and forth, the affected body just snaps to 45 degrees. Check the steps to reproduce for more details. Th ...

Using Blend Physics Weight causes skeletal mesh to spin at high speed

OLD - Anim - Mar 5, 2015

When Phyics Blend in the PHAT editor is set between 0 and 1, the user character will spin wildly. User has image of this affecting character in game whereas I was only able to replicate it in the PH ...

Switching CanEverAffectNavigation on a Dynamic Obstacle Leaves Original Area Behind

UE - AI - Sep 15, 2016

When setting Can Ever Affect Navigation to false, moving it, and then setting it back to true, the originally affected area remains, and it also creates a new affected area. This occurs each time y ...

UDestructibleComponent::ApplyDamage doesn't affect root chunk if the mesh doesn't fracture.

UE - Simulation - Physics - Destruction - May 6, 2016

ApplyDamage calls through to applyDamage on the apex actor, which takes the impulse and applies it to any fractured chunks. If however not enough damage is done to the component to fracture it, no i ...

CRASH: 4.6.1 When running a dedicated server

UE - Gameplay - Blueprint - Dec 24, 2014

Crash Report: [Link Removed] <unknown module>! KERNELBASE!RaiseException() <unknown module>! UE4Editor_Core!FOutputDeviceWindowsError::Serialize() <unknown module>! UE4Editor_Core!FMsg::Logf__VA( ...