Foliage instances are behaving strangely when playing splitscreen multiplayer in a single instance window. The instances will cull in and out of visibility depending on the size of the current playable window.

I have attempted all number of cvars and console commands to try and workaround the issue, but I have not been able to do so.

Tested and occurs in all the below engine versions:

Binary 4.14.3-3249277
Binary 4.15.0-3299760
//UE4/Main 4.16-3345747

Steps to Reproduce

1. Download and Open [Link Removed].
2. Press PIE
3. Repeat step 2 until one or more player screens are no longer render foliage instances.
4. Scale the overall size of the viewport down until the foliage renders on all screens. (example video attached)

Outcome Depending on the size of the viewport the foliage instances will pop in and out of visibility.

Expected The foliage should render and be visible to all players in the local multiplayer session.

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ComponentTools - Foliage
Affects Versions4.
Target Fix4.17
Fix Commit3471254
Main Commit3499771
CreatedMar 15, 2017
ResolvedJun 2, 2017
UpdatedApr 27, 2018