Animation Modifiers that contain a null Animation Sequence value cause the Engine to crash when applied to an Animation Sequence

OLD - Anim - Nov 14, 2018

When an Animation Modifier passes a null Animation Sequence value to an Animation Sequence the Editor will crash. This is a regression from 4.20.3 (CL-4369336). This was reported and tested in 4.21 ...

Engine Crashes when saving a project to disk space is full

UE - Foundation - Core - Feb 14, 2017

I ran out of space in my D drive and my project autosaved and received the attached error message This is NOT a regression ...

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 ...

Marking a Blueprint as Deprecated Causes Existing Instances to be Removed on Level Load

UE - Gameplay - Blueprint - Oct 13, 2016

Enabling the 'Deprecated' option in a blueprint's Class Settings causes all existing instances of it to be deleting upon loading any levels that contain the blueprint. Found in 4.13.1. Reproduced i ...

Nav Mesh Not Generating on Static Mesh Created From BSP

UE - AI - Oct 12, 2016

Nav Mesh is not being generated on a static mesh that was converted from a BSP. Found in 4.13.1. Reproduced in 4.12.5 and 4.14 Main CL 3156733 Attached is a screenshot showing the difference betw ...

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 ...

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 ...

Impure Cast Nodes Can be Converted to Pure While the Blueprint Graph is Read-Only

UE - Gameplay - Blueprint - Dec 1, 2016

Cast nodes can be converted to pure while the blueprint graph is in read-only mode, such as when you are debugging the blueprint. Found in 4.14.0 CL# 3195953. Reproduced in 4.13.2 CL# 3172292 and 4 ...

Eye Adaptation post process volumes make the viewport extremely bright

UE - Graphics Features - Jan 3, 2017

In 4.14 when entering the volume the screen brightens which is expected. The problem is that in 4.15 it brightens more. So much so that some static meshes are rendered almost completely white. I ...

Editor locks up when adding an element for HTML5 devices on Mac

UE - Platform - Mobile - Feb 6, 2017

The editor will freeze when adding an element inside of the HTML5 Devices section of Project Settings. When the editor is relaunched, the element that was attempted to be added will be present in ...