Hi martin_ferrari85,
your recent edit activity has left behind a significant amount of errors in the OSM database regarding self intersecting ways:

https://tools.geofabrik.de/osmi/?view=geometry&lon=-58.78067&lat=-25.74689&zoom=9&baselayer=Geofabrik%20Standard&overlays=self_intersection_ways%2Cself_intersection_points%2Csingle_node_in_way%2Cduplicate_node_in_way

https://overpass-api.de/achavi/?changeset=133799907

Can you please fix this?

As this seems to be a systematical error, may be you can think about how to avoid this error at all?

If you look closely at you new natural areas you will find, they overlap here and there with other areas, so they are quite inaccurate. May be you can improve this as well to improve the quality of your edits in total.

Kind regards
Guido