Problem of black screen after restart

Sometimes it happens that with a quick restart of the Sygic application it lands in a "black screen" state.
This spurious effect is the result of a parallel run of multiple instances of Android activities.

To prevent this situation developers should make sure they don't start the new Sygic instance shortly after (less than 1 seconds) or even with the exit of the previous instance.
It has been observed that 2 seconds time separation is sufficient.

In case the "black screen" situation occurs the back button needs to be clicked to finish up the application, and the next run will succeed.
Please note that this recovery procedure works from the release 13.8.2 on.
Prior to that the recovery is only possible with killing the application instance through Android OS.