Metal Desktop Renderer draws a black pattern on some devices

Hi everyone,

A project using Metal Desktop Renderer draws a black pattern on some devices.

To illustrate this issue, I generated a project from the Rolling template targetted Mobile / Tablet.

Project Settings > Platforms > iOS > Rendering:

  • Uncheck Metal Mobile Renderer
  • Check Metal Desktop-Forward Renderer
  • Select Metal v1.2

I checked it on several iPads (iPad Air 2, iPad 5th, iPad 6th) and iOS versions (11, 12). It seems to occurs on iOS12 but not on iOS11.

Is there anything I can do to fix this issue?

Thanks

The situation changes slightly with Metal v2.1 (UE 4.22). This does not occur with meshes that do not move. This occurs for moving meshes.