cancel notification with remoteInput not working

I am showing a notification with RemoteInput like this:

   RemoteInput remoteInput = new RemoteInput.Builder("key_add_note")
                .setLabel("add note")
                .build();


        PendingIntent AddNotePendingIntent =
                PendingIntent.getBroadcast(getApplicationContext(),
                        (int) txn.get_id(),
                        new Intent(getApplicationContext(), AddNoteBroadcastReceiver.class)
                                .putExtra(Constants.IntentExtras.STA_TXN_ID, txn.get_id()),
                        PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Action action =
                new NotificationCompat.Action.Builder(R.drawable.ic_action_edit_dark,
                        "add note", AddNotePendingIntent)
                        .addRemoteInput(remoteInput)
                        .build();


        NotificationCompat.Builder builder = new NotificationCompat.Builder(context, NotificationUtil.MISC_CHANNEL_ID)
                .setContentTitle("TEST")
                .setContentText("add Note")
                .setSmallIcon(R.drawable.ic_action_edit_dark)
                .setAutoCancel(true)
                .addAction(action);

        NotificationManager notificationManager = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);

        notificationManager.notify(123456, builder.build());

output:

after clicking on add note, entering text and submitting it I try to cancel notification like this:

notificationManager.cancel(123456);

which does not cancel notification but just dismiss the input field with text appended below my notification like this:

why does this not cancel the notification? and how to cancel it.

from cancel notification with remoteInput not working