Unity 6 terrain erosion brush unexpected effects

Unity 6 (versions 22f1 and 11f1) erosion brushes are not working correctly.
Tried all types of erosion on default settings, after applying terrain gets high elevation and no erosion.
Screenshot from 2024-10-17 10-00-21
Screenshot from 2024-10-17 10-00-26
Screenshot from 2024-10-17 10-00-35

Any ideas?