When entering an S line type, the R31410 is being called

Using the P4210, entering an S line type - upon saving, the R31410 is being called. We aren't creating work orders and the report finishes without calling anything else. Why would the P4210 need the R31410 - we don't have a version specified for the P48013 either and it's calling one of our versions - not the ZJDE001 of the R31410. Not sure what else to check.