I am having a similar issue. I am using ArcGIS Pro. I am trying to discard the area of a polygon that is overlapping with a polygon in another layer, retaining the non overlapping area. They are the only two layers turned on. I am using Features/Modify tool on the Edit tab. Selecting the polygon with the edge I want to cut to, the Clip function in the Divide menu of Modify Features, selecting Discard (Remainder). The results are close to what I am looking for, however the edge of the cut polygon does not line up exactly with the edge of the retained one. I attach a screen grab of the issue, the edge of the purple polygon should line up exactly with the edge of the green one, but in places there is a gap and in places there is an overlap. Any help would be much appreciated, Thanks Andy
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