Enfusion Workbench Version: 1.1.0.34
The objects generated as a cluster from a ForestGeneratorEntity spill over the shape of the assigned polygon. This makes working with them very frustrating, as you always have to delete the spilling objects or edit the polygon multiple times.
If this is the intended behavior, a checkbox to limit it to the polygon would be nice, as it is very hard to work with in its current state.