1e339bc0_Background__Usability_problem_description
[Heuristics violated] Help user Recognize, diagnose, and recover from errors [Place of occurrence] Start [Severity] 4 [Usability problem description] 
When a user accidentally hit the home button on iPad, the system will close without any warning and all data will be lost. Restarting within 1 minute allows you to get back to where you were. Otherwise the program will close.
Background
Usability problem description