I have two file geodatabases(FGDB): one a copy of the other with an additional year of feature classes. I've been using the original one for services used in eSearch widget with great success. I copied the original FGDB and added an additional years of feature classes. Any eSearch services hitting the new FGDB return "[RPC Fault faultString="Failed to execute query." faultCode="400" faultDetail=""]". Any ideas on why a service using the same year from two different FGDB's works in one and not the other?