Can't get rid of a vegetation area using Vegetation exclude or size/density

Version: SU/AAU/WU XX - 1.1.7.0

Frequency: Consistently

Severity: High

Context: When using the 2020-built package or when building this package in 2024 SDK

Bug description: A group of shrubs is refusing to be removed, despite the Polygon working for other trees. The shrubs seem to be a separate patch of vegetation that is not affected by the Vegetation settings in the polygon.

Repro steps:

Use polygon as below:

When extending this polygon, the shrubs underneath remain but the trees are gone:

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