Firebase Analytics Log Events is unable to show me the custom bundle value in the dashboard even a day

Question

This is how I am logging my custom bundle to the Firebase Analytics :

params.putString("event_name", event_name);
        params.putBoolean("env", BuildConfig.DEBUG_MODE);
        params.putString("user_id", user_id);
        params.putString("time_at", "" + System.currentTimeMillis());

        mFireBaseAnalytics.logEvent("SessionExp", params);

String "event_name" is visible but not the data.

The event has been called around 60 times but not showing a single param mentioned above.