I created a polygons layer in QGIS 3.22.2 by creating circular buffers around points.
I need to Union them by intersecting the overlapping parts. After running for several hours, the Union tool gives me this error:
Could not add feature with geometry type MultiLineString to layer of type MultiPolygon.
Tried the Multiparts to singleparts, tried the Fix geometries. It's all still the same. I'm kinda afraid to run any line correcting tool in the layer as it could warp the problematic lines to wrong extents/results. Is there a way to convert line to polygon without affecting it's geometry, just to sort of "redefine" it? I'm sure any line can be defined as polygon. If not, how do I sort out these MultiLineString features?
They should not be in a layer created of polygons in the first place. I don't see any way to sort fields by geometry type. I'm trying now layer/save as/geometry type polygon, and running the Union tool in this layer, but something tells me it won`t work either.
How do I get Union tool to work correctly on layer created of overlapping circular polygons?