Strange foliage display on landscape in UE4.4 editor?

[alonezhby]

Hi,
When I paint some foliage on landscape, I have this issue.
Is this a bug? Or how to fix this?

When I restart the editor, this issue still there:

[anonymous_user_923c79df]

Take a look at this thread:

[alonezhby]

Thanks.
it seems works.