Empty slice information when AMF is registered with NRF

You can see from the below logs registration request sent by AMF, the NSSAI information is empty

[2022-11-30T14:08:55.696267] [AMF] [amf_app] [debug] AMF profile to json:
 {"amfInfo":{"amfRegionId":"128","amfSetId":"1","guamiList":[{"amfId":"128:1:0","plmnId":{"mcc":"001","mnc":"01"}}]},"capacity":100,"custom_info":null,"heartBeatTimer":50,"ipv4Addresses":["192.168.70.132"],"nfInstanceId":"8cc7f15a-5730-4a9c-a621-28744db248e1","nfInstanceName":"OAI-AMF","nfServices":[{"ipEndPoints":[{"ipv4Address":"192.168.70.132","port":80,"transport":"TCP"}],"nfServiceStatus":"REGISTERED","scheme":"http","serviceInstanceId":"namf_communication","serviceName":"namf_communication","versions":[{"apiFullVersion":"1.0.0","apiVersionInUri":"v1"}]}],"nfStatus":"REGISTERED","nfType":"AMF","priority":1,"sNssais":[]}