Square Root LOD causing visual glitches after packaging for shipping

Branch: Binary (launcher)

Build version: 4.6.1-2386410 (it happens on 4.5 and 4.5.1 as well)

Detailed description of the issue: When project is packaged with a shipping configuration, landscapes with square root LOD falloffs produce visual glitches. It looks fine in editor, the glitch appears only on shipping builds.


Landscape with normal falloff:

Landscape with square root falloff:

Repro Steps

  1. Create a landscape and set the falloff type to square root
  2. Package with shipping build config
  3. Run the packaged build to see the visual glitch

Repro with project provided

  1. Open TestMap
  2. Landscape on the left is normal falloff, one on the right is square root falloff, observe that both look correct in editor
  3. Package the project with shipping config, once you run the shipping build, you’ll see that landscape with square root falloff produces visual glitches

System Specs: [dxdiag][3]

Repro Project: (can provide a repro packaged build if necessary)

Hi ,

Thank you for your report. I was able to reproduce this on my end and have entered a bug report, UE-6929 to be assessed by the development staff.