Smoothing user's landscape breaks collision, causing player to fall through the ground at points that have been smoothed. Resampling landscape fixes the error until smooth tool is used again.

Regression (uknown) issue (unknown) occur on 4.10.4

Note Error did not occur in 4.9.2. May be related to [Link Removed]

Steps to Reproduce
  1. Download, unzip, open project at link:

[Link Removed]

  1. Press PIE
  2. move character forward


Player falls through landscape


Landscape collision remains in tact, player walks across landscape

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ComponentUE - LD & Modeling - Terrain - Landscape
Affects Versions4.11.2
Target Fix4.12
Fix Commit2961161
Main Commit3023490
Release Commit2961161
CreatedApr 27, 2016
ResolvedApr 29, 2016
UpdatedApr 27, 2018
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