Instancing in OcDs still not working properly (Ultrascatter)

[TRRazor]

I've noticed that - particularly with Stonemason's products - instancing is still not working properly within OcDs.
A recent case would be his environment "The Private Library" https://www.daz3d.com/the-private-library .

The grass - which should be exclusively outside the room - is all over the scene (inside the room, outside the scene boundaries etc.).
Apparently, Stonemason is using a tool called "UltraScatter" (https://www.daz3d.com/ultrascatter-adva ... daz-studio) to create these instances, instead of using DS's built-in instancing functionality, as the nodes in question carry a "Ultrascatter"handle, before their actual name.

Rebuilding or force-reloading the scene does not fix this and - strangely enough - moving, rotating or scaling the instanced nodes does not do anything at all, just as well.

Could this please be investigated?

PS: I'm on the newest test build 3.8.2.39 (64 bit)