Foliage disappears when sculpting terrain.

Hello!
There is a problem that after adding a foliage to the landscape, half (even which is very far away) of it disappears if you start sculpting the landscape, for example, apply sculpting once.
And if the foliage was added as a regular static mesh, then there is no such problem. The ones added as blueprint foliage don’t have any actors in the outliner. If you select them, they stand out, but they are not associated with the InstancedFoliageActor.