Hi All,
We have developed an application using Sencha 2.1
The application hangs at launch in following two scenarios.
1. Switch ON the iPhone and launch the app (it remains on the loading screen which we show while fetching data from server)
2. Lock the iPhone when application is running. Keep it idle for an hour or so. Unlock it. (The application gets relaunch and remain on loading screen)

This issue is very intermittent. We are unable to reproduce it every time.
Nothing to conclude from logs as well.

Note: on iPhone 4s, the application works without this issue.

Appreciate any help in this regard.