Mongo go driver - giving key mismatch error while connecting with ssl enabled and encrypted key

Question

I'm getting following error while trying to connect to mongodb server from golang application kubernetes pod.

Error: tls: private key does not match public key

I'm using mongo-go-driver version 1.4.1

Key is RSA encrypted. -----BEGIN RSA PRIVATE KEY----- Proc-Type: 4,ENCRYPTED DEK-Info: ..

PFB application code to connect

    m.context, _ = context.WithTimeout(context.Background(), 30*time.Second)

    certFilePath := <path>
    keyPassword := <password>

    uri := "mongodb://user:password@<mongoserver>:27017/?authSource=<dbname>&authMechanism=scram-sha-1&connect=direct&ssl=true&sslClientCertificateKeyFile=%s&sslClientCertificateKeyPassword=%s&sslInsecure=true&sslAllowInvalidCertificates=true"
    uri = fmt.Sprintf(uri, certFilePath, keyPassword)

    log.Println("ConnectDB: creating mongo client new")
    clientOptions := []*options.ClientOptions{
        options.Client().ApplyURI(uri),//.SetAuth(credential),
    }

    log.Println("ConnectDB: connecting client")
    m.client, err = mongo.Connect(m.context, clientOptions...)
    if nil != err {
        panic(err)
    }

Same key and certs are working fine when connecting using Robo 3T or Studio 3T

Please help me in resolving key mismatch error. Is it occurring due to incorrect key decryption by golang driver?