store.remove() and store.sync() with localhost proxy what I'm doing wrong?

Hi to all,
i have some problems with store.sync() after a store.remove() function
here's my code:

store:

Code:

---

Ext.define('MyApp.store.MyStore', {
    extend: 'Ext.data.Store',
    config: {
  model: 'MyApp.model.MyModel',
        autoLoad: true,
        sorters: 'name',
        proxy: {
            type: 'localstorage',
            id: 'mystore'
        }
    }
});

---

controllers:

IT WORKS FINE

Code:

---

    MyADD : function() {
              //..................
        Ext.getStore("MyStore").add(myrecord);
        Ext.getStore("MyStore").sync();
        mystore.load();
                //..................

    },

---

HERE I GET SOME PROBLEMS:

Code:

---

MyRemove: function() {
    //..................
        Ext.getStore("MyStore").remove(myrecord);
        Ext.getStore("MyStore").sync();
        mystore.load();
    //..................
    },

---

The problem is:
if i add some records, reload all the app, and remove the records I have non problems,
if i add a records ad them remove it (without reloading the app) this record seems deleted but reappears after another mystore.load() , the records added BEFORE a reload of the app are succesfully deleted, i have this problemo only with remove() and removeall() , no problems with record adding or modifiyng

I already tried to change autoLoad or autoSync proprieties and load/sync manually without results

what I'm doing wrong? :-?

Did you check localstorage if the entry is actually being removed?

of course i check,
the record get removed from the localstorage (google chrome) ad after a second load() it reappears in the view and in the storage (same id)

I've noticed other unusual behaviors:

* if I "modify" the record with and add() before removing it the cancellation is effective an the record don't reappears

Code:

---

        Ext.getStore("MyStore").add(myrecord);
      Ext.getStore("MyStore").remove(myrecord);
        Ext.getStore("MyStore").sync();
        mystore.load();

---

*if i remove ALL records from a store (one by one or removeAll()) and add new records (without reloading the app) I have some visualization problems the localstore contains the right record but in the view I see the previus records (the one originally loaded with the app), if i reload the ap i see all right records.
If i don't remove all the records everithing works fine. I don't know if this second behavior is related to the first but I'ts causing me much more problems because every removeAll() mess up al the app.

any suggestions?