Well glad to hear the debugging is progressing.
The app loading indicator seems like a strange issue. You could create just a skeleton application, which would contain the app loading indicator, and I suspect it should work. Have you customized the app loading indicator otherwise?
Not sure I understand your config.xml issue, but that seems more webworks related than sencha. Have you searched the bb developer forums for a solution for that?
Yeah I'll investigate about the appLoadingIndicator bug after fixing everything else, but I haven't modify that part of the code, the only thing I know is when I let the CSS the application crash, if I remove it, it works.
Maybe a conflict with some JS? It would be weird but porting application to BB is full of surpise
Yeah I'll check with them directly the config.xml error.
Checking the conflict should be easy enough - if you rename the CSS class and update the div tag and it works, then you know it was a conflict.
You may also want to check the app.js. There is a reference via Ext.fly that accesses the div to remove it. Maybe it's crashing there?