Alpha Textures reimported via overwriting disappear from level

UE - Graphics Features - Nov 10, 2014

When you reimport a texture that has an alpha by Importing and then overwriting the previous texture, all versions of that texture in any material or in the level complete disappear until you compil ...

Unable to open UE4Editor on Linux - Bad hlslcc header found

UE - Platform - Linux - Nov 4, 2015

UE4Editor does not open on Ubuntu 15.10 due to the following error: [2015.11.04-16.19.35:974][ 0]LogOpenGLShaderCompiler:Error: Bad hlslcc header found! Missing '#'!Error in `./UE4Editor': free(): ...

Enum to Byte conversion returns 2 for the first enum then 4 then 6 and so on rather than 0, 1, 2, etc

UE - Gameplay - Blueprint - Sep 1, 2015

Enum to Byte conversion returns 2 for the first enum then 4 then 6 and so on rather than 0, 1, 2, etc. This is a regression; does NOT occur in 4.8.3. Reproduced in 4.9.0 binary and Main (2675088) ...

Code based component name differs in Blueprint Components and main Viewports Details

UE - Gameplay - Blueprint - Jun 24, 2015

If the TEXT("") portion of CreateDefaultSubobject is changed then the name of the component will update in the main viewport details but will not update inside the blueprint based on the class. ...

Audio Persists and App becomes Unresponsive when Opening Map and Calling Movies to Load

Media Framework - Nov 17, 2016

A licensee is experiencing odd behavior when using custom code to call a loading movie when opening/loading a level. The licensee has implemented a loading movie to play when calling a map to open ...

HLODs do not correctly work with Dynamic Material Instances

UE - World Creation - Worldbuilding Tools - HLOD - Jan 11, 2016

A licensee has reported that when using Create Material Instance Dynamic and adjusting a material at run-time is not working with HLODs. It doesn't seem supported (yet) and unchecking the "merge m ...

ExponentialHeightFog is not rendering through VR

UE - Platform - Mobile - Mar 14, 2016

ExponentialHeightFog does not render for Gear VR devices when both the device and project are set for Gear VR. However, the fog does appear on a project without Gear VR enabled. Occurs On: GalaxyS6 ...

Form Extended Structures will only destroy one mesh but not any attached

UE - Simulation - Physics - Destruction - Nov 28, 2014

DESCRIPTION: While using form extended structures enabled for a Destruction mesh one of the meshes will be able to be damaged while any others attached will not fracture or damage at all. For exam ...

Missing Jump Nodes for Character Blueprint in 4.8 verstion of Animatioin Starter Pack

Docs - Samples - Jul 10, 2015

While other inputs are set up for the Character BluePrint, the inputs for Jump are missing so that, even if the user enters Action Mappings for jump under project settings, the character may play t ...

Static Shadows disappear with Stationary directional light when close if dynamic shadows have been turned off

UE - Graphics Features - Mar 17, 2015

If using a Stationary directional lighting with object that have disabled dynamic shadow casting will lose their statically cast shadows when the dynamic lighting is in range. See attached image a ...