When using multiple spatial servers, incoming requests are cycled through the available spatial servers. If the response from one of the spatial servers is not written to the correct output location, a blank output is received.
If full paths (C:\arcims\output) were used to specify the output directory instead of UNC paths, spatial server responses are written to the local output directory of the local spatial server machine rather than in the output directory common to all the spatial servers.
Get help from ArcGIS experts
Download the Esri Support App