I’ve hit this problem when getting the config of a IOS-XR 6.6.3 (YDK classes are for 6.6.2), it seems that YDK is not working well with the class 'Snmp' from module 'Cisco_IOS_XR_snmp_agent_cfg'. The 6.6.3 is supposed to be only bug fixes of 6.6.2 (I...