[Vuejs]-Vuejs router.go(-1) not showing on second time

I figure it out:

The problem was coming from socket.io. I’m checking if the event is bind already before to subscribe to a function and this function contains ‘this’ that was still referring to the previous Vue instance.

Simply fixed by replacing this:

  //get rows 
    if (store.state.socket.io._callbacks["$rows"] == undefined) {
      console.log("Binding rows");
      //Where I receive the rows from API
      store.state.socket.io.on("rows", data => {
        console.log("rows reponse:", data);
        if (data.success) {
          this.nbrItems = data.rows.length;
          q.splice(0, q.length); //Clean the array without replacing the instance
          data.rows.map(a => q.push(a));
          console.log("Queue length: " + q.length);
        }
      });
    }

by this:

    if (store.state.socket.io._callbacks["$rows"] != undefined) {
      store.state.socket.io.off("rows");
    }
    console.log("Binding rows");
    store.state.socket.io.on("rows", data => {
      console.log("rows reponse:", data);
      if (data.success) {
        this.nbrItems = data.rows.length;
        q.splice(0, q.length);
        data.rows.map(a => q.push(a));
        console.log("Queue length: " + q.length);
      }
    });

But this makes me wonder, if I can still access to a previous Vue instance is it meaning that it will be some kind of memory leak with time?

I suppose that no with the garbage collector but would mean that nothing else refers to the previous instance.