Description

Two licensees are reporting visible landscape corruption when opening their level in the editor, which goes away after various actions - opening the landscape editor or building geometry. PIE / game appear to be unaffected.
The first licensee says that the issue persists when exporting the heightmap and reimporting, and have provided their heightmap (attached).

I cannot reproduce, I'm assigning to QA to attempt to reproduce.

Licensee reports it is possibly nVidia specific, possibly a driver bug?

Steps to Reproduce

Create a new landscape importing the attached heightmap
Save the level
Reload the level

Have Comments or More Details?

There's no existing public thread on this issue, so head over toAnswerHub just mention UE-13660 in the post.

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Fixed
ComponentTools - Landscape
Affects Versions4.7.14.7.3
Target Fix4.8
Fix Commit2528096
Release Commit2533352
CreatedApr 10, 2015
ResolvedMay 12, 2015
UpdatedApr 27, 2018