I am using ArcGIS Pro 2.7.1 on a pc with good technical specs.
I am attempting to run the Intersect (Analysis) tool between two layers. One layer contains polygon county shapes for the contiguous United States, and the other contains a single polygon, created by a buffer for several hundred thousand points.
The tool repeatedly fails while "Assembling Features", giving "ERROR 160196: Invalid Topology".
What strategies can I take the avoid this error and generate the intersect? Note, the error inspector does not find any topology errors, and the input layer appears as expected. I have tried restarting. I was able to run an identical process with an input layer of a 1500 meter buffer, with a two minute runtime. The 500 meter buffer always fails.