Hi JLZIMMERMANN,
your recent activities have left behind a lot of errors in the OSM database regarding self intersecting lines:

https://tools.geofabrik.de/osmi/?view=areas&lon=5.31738&lat=44.02332&zoom=10&baselayer=Geofabrik%20Standard&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Especially landuse relations are affected here. Can you please fix this?

May be you like to educate yourself about the basics of multipolygon relations:

https://wiki.openstreetmap.org/wiki/Relation:multipolygon

Kind regards
Guido

