Child blueprint reference to self node unpins after close and reopen from Set Array Element node

UE - Gameplay - Blueprint - Jun 1, 2015

If a child blueprint attempts to set an array element of self to an array of the parent blueprint, then the editor is saved, closed, reopened, the self pin will disconnect from the Set Array Element ...

This project crashes when opening most maps after converting to 4.7 Preview 5

UE - Gameplay - Blueprint - Feb 4, 2015

This project crashes when opening most maps after converting to 4.7 Preview 5. Also crashes after converting to 4.8 Main (tested in //depot/UE4/Promotable-CL-2429371). Crash log attached. Crash R ...

Editor primitives render incorrectly in stereoscopic with instanced stereo

UE - Platform - XR - Aug 17, 2016

Trigger box icons move around when oculus head movement is used. Found in //UE4/Release-Staging-4.13 @ 3090357 QA-Promotion map Edit: 08-22: This affects volumes as well as their editor icons, upd ...

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 ...

Projects using a class that inherits from SceneCapture2D may crash on launch on iOS devices

UE - Platform - Mobile - Jan 4, 2016

If a project uses a class that inherits from SceneCapture2D and sets the render target via code, the project will crash on launch on an iOS device. The project runs normally on PC and Android. Proj ...

Changes to Landscape Thickness not propegated to PhysX

UE - LD & Modeling - Terrain - Landscape - Jun 3, 2015

In 4.8 preview 4, it appears that changes made to a landscape actor's CollisionThickness property in the editor are not being replicated in physX [...] It appears that what happens is that the engin ...

Editor tabs switch when pressing stop during PIE

Tools - Apr 6, 2015

While playing in PIE, the editor switches back to the main tab when you're in the blueprint tab after you've pressed 'stop'. Therefore, if you're debugging a situation within the blueprint, you're i ...

Using FEditorModeID for the "Mode" console command does not switch the modes tab

Tools - May 10, 2016

Using the FEditorModeID for the different editor modes does not affect actual modes available in editor Modes tab. Example: Command "Mode EM_Foliage" does not switch to the foliage mode Workaround ...

Set All Bodies Below Simulate Physics Only Causes Ragdoll Effect if it is Set to Root Bone

UE - Simulation - Physics - Sep 29, 2017

-This functions in 4.16 -Physics will only simulate if the Third Person Character bone name variable is set to root -Physics does not affect any other bone -Make sure to plug in set in collision f ...

Performing a Clean on a project using a binary Engine installation on Mac removes some Engine .dylib files

UE - Foundation - Core - May 17, 2018

When a Clean is performed on a code project that uses a binary Engine installation on a Mac, some of the Engine's .dylib files are removed during the Clean process. A Clean process for a project usi ...