When using Drag and Drop UMG, Projects deployed to devices will crash once the UMG is touched and moved

UE - Editor - UI Systems - Dec 30, 2014

When using Drad and Drop UMG with iOS via the information provide in the forum thread, the project will crash on the device it is deployed to when dragging the UMG ...

Unable to save project due to user created blueprint node that creates user created object

UE - Gameplay - Blueprint - Apr 28, 2015

When a user creates a blueprint node of their own that is used to spawn a user created object, the project becomes unable to be saved after the blueprint is put into use. ...

Crash When Opening Static Mesh After Enabling Forward Shading And Disabling "Support Stationary Skylight"

UE - Graphics Features - Apr 17, 2017

After enabling forward shading and disabling "Support Stationary Skylight" opening a static mesh in the static mesh editor will crash the engine. REGRESSION? Yes Crash Did NOT occur in 4.15.1 CL ...

MaterialInstanceConstant doesn't refresh soft references of non-overridden texture parameter

UE - Graphics Features - Aug 22, 2022

Observed by a licensee: [Link Removed] When a material instance points to a material, and the material is edited to change a texture and the material and material instance are saved, the material i ...

Syncing to an asset through in-editor interface will not update existing assets while in the editor

Tools - Sep 4, 2015

If a user syncs to an asset through the editor (right-clicking it in the Content Browser and selecting Sync), the asset will not update until the editor is closed and reopened. Note: This issue is ...

Implied Decal Blend Modes don't account for static ignore-switch parameters in an expected way

UE - Graphics Features - Sep 28, 2021

The desired behavior from a user perspective here is that they'd be able to use Static Switches in a decal master material to toggle different features and behaviors. In the above setup, if I set th ...

Chaos Modular Vehicles Examples desynchronizes easily

UE - Simulation - Physics - Feb 27, 2025

Chaos Modular Vehicles Examples does not replicate properly and it's easy to reach a state of desynchronization where the state stops being replicated and position/rotation of cars mismatch. As an ...

DeprojectScreenPositionToWorld has inaccurate behavior in VR

UE - Platform - XR - May 6, 2015

Calling DeprojectScreenPositionToWorld while in VR mode does not project from the center of the Oculus view. Using the results of the call with a line trace will show the line coming off center fro ...

OnKeyDown does not function in packaged game

UE - Editor - UI Systems - Jul 17, 2015

Pressing down a key for a widget blueprint works in PIE however, it's not functioning once the project is packaged. Project Rar File: [Link Removed] ...

Replace Selected Actors With option breaks spawnable bindings when used with spawnables in Sequencer

UE - Anim - Sequencer - Sep 12, 2023

Replace selected actors with seems to remove the spawned actor without the sequence being aware that this happened. ...