Scatter Cluster issue

Scatter Cluster issue - it create stripes instead of clusters

It is caused if scatter object has disconnected islands like this

It looks like it is caused not by polygon islands but on every big irregular area. Completely not depends on Scatter settings

The same issue with Cull Effect. It doesn’t work correctly on large surfaces :

Also Cull Effect has issue if selected object for using Cull Effect is hidden after that.

Clusters doesn’t work even on small simple square area

Completely garbage, useless feature that ruin whole grass placement

I noticed that it works near fine using very different Scatter quality values - sometimes large, sometimes low like 50%. It is very randomly and differ on different terrains.