SNMP-V3 trap-send not work

[jingc1413]

Hi, bro, i have some question, Please give some help or suggestions， thanks
gosnmp version: v1.37.0
go version: v1.19.6

1，Using the code in the example, start trap-serv and trap-cli to send and receive messages normally.
2，net-snmp snmptrapd can also receive messages normally
3，Use net-snmp snmptrapd as the server, and then use the gosnmp trap-send_v3 example to send data, but snmptrapd does not receive the data.

1）cat snmptrapd.conf

authCommunity log,execute,net public
createUser -e 123456789 user SHA pass AES pass
authuser log user

2), listen trap:

snmptrapd -f -d -m +ALL -Leo -On -C -c ./snmptrapd.conf udp:9888

output: 

3), send trap:

 snmptrap -v 3 -l authPriv -u user -a SHA -A "pass" -x AES -X "pass" -e 123456789 127.0.0.1:9888 "" 1.3.6.1.4.1.19046.11.1.158.5.1.24 s "hello world"

gosnmp trap-v3 send code:

package main

import (
    _ "crypto/md5"
    _ "crypto/sha1"
    "log"
    "os"
    "time"

    g "github.com/gosnmp/gosnmp"
)

func main() {
    params := &g.GoSNMP{
        Target:        "127.0.0.1",
        Port:          9888,
        Version:       g.Version3,
        Timeout:       time.Duration(30) * time.Second,
        SecurityModel: g.UserSecurityModel,
        MsgFlags:      g.AuthPriv,
        Logger:        g.NewLogger(log.New(os.Stdout, "", 0)),
        SecurityParameters: &g.UsmSecurityParameters{
            UserName: "user",
            AuthoritativeEngineID:    "123456789",
            AuthenticationProtocol:   g.SHA,
            AuthenticationPassphrase: "pass",
            PrivacyProtocol:          g.AES,
            PrivacyPassphrase:        "pass",
        },
    }
    err := params.Connect()
    if err != nil {
        log.Fatalf("Connect() err: %v", err)
    }
    defer params.Conn.Close()

    pdu := g.SnmpPDU{
        Name:  "1.3.6.1.4.1.19046.11.1.158.5.1.24",
        Type:  g.OctetString,
        Value: "hello world",
    }

    trap := g.SnmpTrap{
        Variables: []g.SnmpPDU{pdu},
    }

    _, err = params.SendTrap(trap)
    if err != nil {
        log.Fatalf("SendTrap() err: %v", err)
    }
}