After generating HLOD, game launched from launch on device does not run correctly.

4.14 does not seem to have this issue, so this might be a regression.

Steps to Reproduce

1. Create a new blank project
2. Add a cube to the map
3. Enable HLOD in world setting, and in HLOD outliner, generate clusters then proxy meshes
4. Save all, then try to launch the project on PC
5. Game crashes on launch
(6. Launch on device will work correctly after reopening the project)

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ComponentUE - AI
Affects Versions4.15
Target Fix4.16
Fix Commit3314151
Main Commit3358685
CreatedFeb 16, 2017
ResolvedFeb 21, 2017
UpdatedApr 27, 2018