Mobile VR - Foliage (HISM) crash

Tools - Foliage - Jun 7, 2019

HISMs cause mobile VR app to crash. Confirmed in 4.23 MAIN @ CL 6829265 ...

Crash when creating an animation

Tools - UMG - Jun 7, 2019

The editor crashes when trying to add an animation key frame for the row fill setting for a grid panel ...

Packaged Dedicated Server will not regenerate navmesh around instanced mesh

Gameplay - AI - Jun 6, 2019

The foliage instanced mesh, as well as ISM and HISM components both appears to be unable to export navmesh data for generation once we introduce a change in the contents. This error only shows up in ...

Mobile VR - Render Targets not working with Mobile Multi-View

Virtual Reality - Jun 6, 2019

Render target materials display as black on mobile VR when Mobile Multi-View is enabled. Also confirmed with LDR capture source. User also reports issues with scene depth (potentially fixed with U ...

Disabling 'Maintain Horizontal Ground Velocity' -> incorrect velocity reported when colliding in negative directions

Gameplay - Player Movement - Jun 6, 2019

With  'Maintain Horizontal Ground Velocity' disabled in the first person character - velocity is not set to zero when stopped by collision while moving in a negative direction. Confirmed in 4.23 ...

iOS Show External Login UI Blueprint Node fails on new iOS devices

Online - OSS - iOS - Jun 6, 2019

I have been trying to test iOS online subsystem functionality for my game and thought that this blueprint node was just broken. This bug will probably catch many UE4 developers that are new to iOS b ...

Niagara emitters occassionally don't receive death events

Rendering - Niagara - Jun 6, 2019

The death events for Niagara emitters on a Niagara System are ignored every few loops. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6547378), 4.23 (CL - 6859026) ...

Shadows flicker when using spotlight

Rendering - Jun 5, 2019

The shadows on a spotlight flicker whenever the camera is moved.  Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22.2 (CL - 6547378), 4.23 (CL - 6845209) ...

Can't reference function parameters in interface functions

Gameplay - Blueprint - Jun 5, 2019

"If a blueprint implements an interface function that returns a value, it is not possible to reference function parameters by right clicking and searching for them. In regular functions, if a functi ...

Omni-directional Stereo Capture render appears to have offset shadows

Virtual Reality - Jun 4, 2019

Shadows appear offset when using Omni-directional Stereo capture (see attached gifs) ...