Yep.. Slow exits do occur. Sometimes, it even refuses to exit properly and hangs, showing a blank screen, forcing me to kill the app to restart it. When such occurs, it helps to check the logs and troubleshoot why and rectify. In most cases, nothing actually happens after kill and resume. But always keep a clean stable backup just incase it crashes that one time and refuses to start properly. So you can delete and reinstall with backup.