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Issue with Calculate Length Downstream tool

Question asked by angus.a.vaughan on Mar 21, 2016

I'm using the ArcHydro tool "Calculate Length Downstream for Edges" on about 50 stream networks.  The tool works correctly for most of the networks. However, on a few of them, the tool says it runs successfully, but the resulting field is populated with zeros.  Anyone had this issue before or know what might be going on?  Thanks for your help.