Using ArcGIS Desktop 10.2.1. I have a set of about 600 points that I???m using as the flag input on the trace geometric network tool. Every time I ran the tool with these points, it crashes, along with ArcMap or ArcCatalog, whichever its being run from. I began isolating the points/flags and found that it was crashing only on certain points. Since the crash doesn???t provide any information on the cause, I have no way of knowing what???s causing it or whats different about these points that's causing it to crash. Has anyone experienced an issue like this? The crash occurs on any trace task type.