The build version is:
573210620
Printable View
It looks like the build version is the same. Please let us know if stopping the app from Manage Applications allows it to run again.
Are you exiting the Mezzmo app or just pressing the home button to return to the main menu of the Fire TV? If you are exiting the app please try leaving it running and just use the home button on the remote to return to the menu or if you are just using the home button please try exiting the app from the menu. We have tested here and if we exit the app we can always return to it, we will try leaving it running to see if this is causing the issue.
On the FireTV here I can press the home button and then return to the app without a problem, I am doing this from the media list so possibly it only happens in a specific part of the app? Can you please tell us if you are pressing the home button from a different part of the app or if you open the app then press the home button and then try to open the app again will the problem occur or does it only happen after a specific set of actions?
After playing around with this for few days I can say that the app will always reopen properly after being properly closed or shutdown (Exit, Force Stop, Device Restart). I haven't been able to isolate when it hangs. I just know that 3 out of 4 times if I use the home button instead of exiting or if the FireTV Stick is allowed to sleep and then wake up then Mezzmo will not open.
Understand, thanks for testing. We will keep trying to reproduce the problem here so that we can try to fix it.