Cannot freeze Array Buffer views with elements??

[Kaffiend]

Throwing a TypeError Cannot freeze array buffer views with elements.
The effect seems pretty straight forward, so im not sure why im getting this. I am however using Electron and Mongo at the service level. Which is returning an observable of the payload as the http service would.

Effect

 @Effect() login$ = this.actions$
        .ofType(userActions.UserActionTypes.USER_LOGIN)
        .switchMap(action => this.userService.getUserLogin(action.payload))
        .map(payload => {
            let userDb = payload;
            return userDb === null ?
                new userActions.UserLoginFailureAction() : new userActions.UserLoginSuccessAction(userDb);
        })
        .catch((err) => {
            console.log(err);
            return Observable.of(new userActions.UserLoginFailureAction());
        });

Service

 getUserLogin(inputUser: User): Observable<User> {
    return this.mongoService.db.flatMap((db: Db) => {
      return Observable.create((observer: Observer<User>) => {
        db.collection('user_docs').findOne({
          $and: [
            { userName: inputUser.userName },
            { password: inputUser.password }
          ]
        }, ((err: MongoError, doc: User) => {
          err ? observer.error(err) : observer.next(doc);
          console.log(doc);
          observer.complete();
        }));
      });
    });
  }

[brandonroberts]

If this is still relevant please open a new issue. Thanks