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I have dissolved line feature which I have to cut down from the administrative boundary

I used line Dissolve areas and a tiler (with fix seed coordinate) are in Clipper port and the administrative boundary areas in the Clippee port, Clipper type (multiple clipper), no group by. Now it running very slow and showing

Performing low-level intersection at phase #1... 100% done

Finished clipping group 22 / 4558

have anyone any suggestions?

Maybe some features being unfortunately cut into for instance lines posing as areas. (areas with 0 surface).

Or coinciding vertices or..

Did you try a validator before the clipping?

It seems the data entering the clipper has some issues(?)

Hard to say, is it a lot of data? Can you post sample data ?

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