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I have a point feature and am interested in finding the least cost path between two points in the feature using a raster as the cost surface. I first calculate the cost distance and cost backlink via the CostDistance tool. I then use the CostPath tool to get the actual path and then look at the PATHCOST attribute for the raster cell's with value 3.

What I do not understand is if I run the CostPath tool with output workspace pointed at a GDB, the PATHCOST comes out as expected. When I run the CostPath tool using in_memory (this is actually part of a script) as the output workspace, the PATHCOST values always come out to zero. I've debugged this until I was able to pintpoint this as culprit, happening in ArcMap as well, not just the script environment.

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