Particle AnimTrails do not render on Android with Mali chipset when using OpenGL ES 3.1

UE - Platform - Mobile - Nov 22, 2016

Particle AnimTrails are not rendering on Mali but will render on the Adreno when using the OpenGL ES 3.1. ES2 renders correctly on both devices, just ES 3.1 does not. The devices compared: Working ...

Setting Physics Blend Weight to anything between 0 and 1 causes erratic behavior

UE - Simulation - Physics - Jul 27, 2015

If the user simulates all bodies, and then sets the physics blend weight to a decimal value between 0 and 1, the skeletal meshes will spin out of control. This doesn't happen if the physics blend w ...

Adding a Named Slot to a UMG Widget is causing the number to increase rapidly.

UE - Editor - UI Systems - Feb 25, 2015

If you create a new Blueprint Widget, place a button into the widget, and click, hold, and drag a Named slot onto the button, the number of the Names Slot will keep increasing as long as the named s ...

Editor Crashes When Cloth Asset Is Applied To Material With Support Compute Skincache Enabled

UE - Simulation - Physics - Character - Feb 24, 2017

After enabling Support Compute Skincache if you attempt to apply a cloth asset to a material in the skeletal mesh editor the engine will crash. This may seem similar to [Link Removed] but I confir ...

Support for 16-bit precision for positions in vertex buffer

UE - Graphics Features - Sep 7, 2018

Add support for 16-bit per component format for POSITION in vertex buffers as an option. Half-precision is already supported for UVs and TANGENTS on a per model basis, and was hoping that this woul ...

[MAC]: Leap Motion Support?

UE - Platform - XR - Jun 29, 2015

Can we add Leap Motion support to the Mac? The current UE4 plugin doesn't support the Mac, but the Leap has official Mac drivers, so it should be possible to add. ...

Depth Fade Material + Mobile HDR Disabled does not work with OpenGL 3.1 on Oculus Go

UE - Platform - Mobile - Dec 28, 2018

"Depth Fade" material node does not work on Oculus Go with Open GL 3.1 active and Mobile HDR disabled. Seems very similar to [Link Removed] however disabling Separate Translucency or calling  r.M ...

The slider handle in UMG is clipping at 0 and 1

UE - Editor - UI Systems - Jan 20, 2016

If the user sets the value on the slider to 0 or 1 the handle will clip as it appears to go too far to either side. ...

User defined struct pins shows display a string of letters & numbers when switching Editor language

UE - Gameplay - Blueprint - Jan 18, 2017

Editor language switch can turn struct get/set nodes pins(split) to display extra string of letters & numbers after their original name. ...

Performance problems (freeze) in SCS tree view with a significantly large number of components

UE - Gameplay - Components - Mar 9, 2018

User reports an unreasonably long editor freeze when a significantly large number of components need to be processed in the SCS editor tree view (tens of thousands) when selecting an instance of a B ...