Error reading OID from table. Reading rows has been stopped. Check that the datasource is valid. OID mapped column has null value. The operation is not supported by this implementation.
From what I can tell, it's an issue with including the PK on the table:
Here's the data type:
idnum (PK, FK, numeric(18,0), not null)
I am unable to change structure - is there any way to work around this? My dev environment is using ArcGIS Server 10.2 - my production environment is 10.3 if this is a bug of some sorts in 10.2.
Any help is appreciated! Thanks!