Hi i just wanna tell u guy's about a little issue i was facing.

i wanted a list without that loading mask so i set the
Code:
loadingText: null,
in my list as mentioned here

b
ut when i set the pullrefresh it crashes .. when i use it
Code:
plugins: [{            
            ptype: 'pullrefresh',
            pullRefreshText: 'ziehen zum neuladen',
            releaseRefreshText: 'loslassen zum neuladen',
            loadingText: 'Daten werden neu geladen'
        }],//plugins
just right here in "Ext.plugins.PullRefreshPlugin..." in the the onBeforeLoad function #30240(debug)

my little workaround, hope this helps someone else facing the same problem
Code:
onBeforeLoad: function() {
        if (this.isLoading && this.list.store.getCount() > 0 && this.list.loadMask) {
            this.list.loadMask.disable();
            return false;
        }
    },
regards ..