Procedural foliage spawner issue

When I try to “resimulate” the procedural foliage spawner I get “unable to spawn instances ensure a large enough surface exists within the volume” both with the ready ones from the kite demo and one I made on my own.

I tried migrating my map to another project (4.11 again) and it worked just fine. Any solution?

Having the same issue. Any Solutions?

having the same issue. What do we do???