Emitter Delay Range will only recalculate each loop when Emitter Duration is checked True

UE - Graphics Features - Jan 12, 2015

To have a Particle System use an Emitter Delay Range that is chosen on each loop of the emitter, you must have under Duration, Duration Recalc Each Loop set to True. ...

Refraction not calculated when using Material Property Overrides Blend Mode

UE - Graphics Features - Sep 10, 2015

Found in the process of replicating the linked Answerhub. When an opaque material is setup as a master material with the intent to have an Opaque and Translucent version, the material instance will ...

UTF-16 characters return incorrectly from StringToBytes/BytesToString conversion

UE - Foundation - Core - Jul 28, 2016

When a UTF-16 character (™ for example) is passed into a StringToBytes() function and then returned via BytesToString, the returned character does not match (in the case of ™, a double quotes is ret ...

Shots have little visible indication when they are overlapping

UE - Anim - Sequencer - Sep 15, 2016

Shots have little visible indication when they are overlapping. This can cause some visual confusion as to why events and spawnables from a shot that looks like it should end are still triggering ...

3D Widgets do not render correctly for GearVR

UE - Platform - XR - Jun 15, 2016

3D widgets attached to the camera render incorrectly when compared to the oculus rift. When the Widget is centered to the camera and attached to it in the Character BP the widget will render incorre ...

Unexpected vertex normal orientation when manipulating some morph targets

OLD - Anim - Jul 19, 2016

Unexpected vertex normal orientation when manipulating some morph targets. This may be related to [Link Removed], but felt different enough to enter on it's own. ...

Instanced Foliage Actor painted on an Actor who is attached to a Parent Actor, does not update transform when Parent is moved.

UE - World Creation - Worldbuilding Tools - Foliage - Dec 2, 2019

Instanced Foilage Actor painted on an Actor who is attached to a Parent Actor, does not update transform when Parent is moved. Note:  The foliage will move if the base actor is moved directly, inde ...

Niagara Particles do not respond to Set World Origin Location

UE - Niagara - Aug 17, 2020

Setting the world origin will not update existing Niagara particles. ...

Rendering from the Movie Render Queue at runtime while using the current level will fail, even when the levels match

UE - Anim - Sequencer - Jul 22, 2021

When Use Current Level is true, the MRQ tries to validate that the maps are the same, but this will fail when the maps actually do match.  The Use Current Level flag should allow the render to cont ...

High Resolution Screenshot in Orthographic Unlit Mode Does not Capture Correctly

UE - Graphics Features - Jun 3, 2015

When taking a high res screenshot of an object in orthographic view in 'Unlit' mode, the object size in pixel is the same no matter the resolution multiplier. For instance if you set it to 10.0 th ...