Thumbnails do not update when setting Primitive Type inside Material Editor

Tools - Oct 24, 2017

In the Material Editor in UE4 selecting the Primitive Type under Thumbnail in the Details View does not update the preview material. There is no visible change or detail change that can be seen when ...

Multiple simultaneous keyboard event inputs not received

UE - Gameplay - Input - Mar 5, 2018

User Submitted Bug Some keys are not registered when pressed with combination of others. ...

Rotating Movement Component stops at pitch of exactly 90 or -90

UE - Gameplay - Apr 30, 2018

When you set the rotation rate of a Rotating Component so that the moved actor reaches exactly 90 or -90 pitch, it stops rotating for a few seconds. ...

4.21 PIE Issues in High DPI

Tools - Nov 26, 2018

Using a High DPI monitor with a multiple players PIE window results in the 2nd PIE window not saving its location when moved around. Using a monitor with a smaller DPI scale the 2nd window will save ...

Broken Composite Decorator

UE - AI - May 14, 2019

Reported by Square Enix on UDN, ...

Crash: Landscape Materials Missing on Shipping and Development Packaged Builds

UE - Foundation - Core - Sep 9, 2019

When running a packaged build of a project with a level with a landscape that has a material assigned it will crash (shipping build) or not retain the assigned material (development build). There i ...

Graph Editor ZoomToFit fighting user

UE - Editor - UI Systems - Slate - Oct 22, 2019

When using the middle mouse button for panning in a graph editor, the zoom/pan transition effect will not cancel before completion due to manual input, leading to UI/User competition in an undesirab ...

Bounds location of apex destructible mesh will not be updated when added to sequencer directly from content browser

UE - Simulation - Physics - Destruction - Apr 22, 2020

Destructible mesh's location will not be updated when added to sequencer directly from content browser, unless two different locations are keyed on the transform track of the mesh. We found the bug ...

Warning in Net.PacketNotify Test

UE - Networking - Jan 27, 2021

Warning when running the packet notify test, regarding missed acks. ...

When changing the Material of a CompleCollision during PIE, the change is not applied to the PhysicsMaterial.

UE - Simulation - Physics - Nov 24, 2022

If changing the material during PIE, the content of the material will be reflected immediately, but the physics material will not. Once the Mesh (Complex Collision Mesh) is cleared and reset, it wil ...