Disparity in Rotation tool

Tools - Aug 31, 2016

There is disparity between the two different ways of editing rotation. When using the scrubber in the details panel each value scrubbed only affects that value and the values go from 0 to 360. When ...

Crash enabling Stochastic Rect Light with Ray Tracing

UE - Graphics Features - Lumen - Oct 13, 2020

Enabling Stochastic Rect Lights with Ray Tracing causes the project to crash. Reported and tested in version 4.26.0(CL 14419252). Tested and not found in version 4.25.3(CL 13942748).  ...

Crash When Assigning a Static Mesh to the "Sample Static Mesh" Module

UE - Niagara - Jun 28, 2018

When assigning a static mesh to the "Sample Static Mesh" module, the engine will crash as soon as you select a mesh and click "Fix Now". If the mesh already has CPU access enabled it will crash as s ...

Non-Uniform Mobile Content Scale Values Render Black Screen when Launching to Mobile Device

UE - Platform - Mobile - Mar 3, 2015

When attempting to set the configuration for mobile devices within the Engine/Config/DefaultDeviceProfiles.ini, any value that is non-uniform like 1.2 or 1.6 will render a black screen after deployi ...

Edits of node properties that are not stored on pins do not diff correctly

UE - Gameplay - Blueprint Editor - Oct 2, 2015

Currently details changes to the following are not noticed by the Diff tool when diffing AnimBPs:State Machines (i.e. Max transitions per frame)Transition rulesConduitsStates This also affects non- ...

Source control reports errors rather than warnings regarding line endings, causing false negative failure of commandlets.

UE - Editor - UI Systems - Localization - Jun 16, 2015

Second issue arises when I have already created localization related files when not connected to source control, so they are not marked to add. Gather Text commandlet log has theese lines in it: [2 ...

"Combine Meshes" Breaks Material Slot Assignment

Tools - Jan 18, 2017

When importing an FBX with several different meshes and multiple materials with "Combine Meshes" enabled the materials will get assigned to incorrect portions of the mesh. I've included a version o ...

Actor instance FComponentReference to other actor instance gets nulled on other actor recompile

UE - Gameplay - Blueprint Compiler - May 21, 2024

An editable FComponentReference property on an actor instance can be used to reference another actor's component in the scene. In 4.27 and earlier versions these references were retained when the ot ...

Extremely far out zoom creates jagged lines where meshes overlap.

UE - Graphics Features - Jul 17, 2015

I created a very large static mesh and then put a basic floor underneath it withe the bottom of the mesh overlapping the floor. I then created a camera 250,000 cm out from the mesh and zoomed in usi ...

Crash after network disconnection/pulling network cable

UE - Networking - Jul 11, 2019

A very unfortunate bug shipped in 4.22 that causes a crash in many cases when a client is disconnected from the network, such as when unplugging the network cable. This will be a cert failure on con ...