Looks like we can't reproduce the issue or there's a problem in the test case provided.
Sencha Architect 2.2.2 build 991 - Sencha Touch 2.2 project
Is it normal that when creating a Sencha Touch 2.2 project from Sencha Architect, the App generated by architect references Sencha 2.0 instead of 2.2 making it incompatible with IE.
I've realized that when my App was almost done. Of course, if I'm just updating the references to include the 2.2 JS and CSS files, nothing works anymore.
Sorry, it was my mistake...it's working fine.