Hello
@x4|Al Gore ,
sometimes the app has problems starting und keep running in background due to energy-save settings.
Android kills background-apps which are not used for an unknown amount of time.
You could try to disable battery optimizing for this specific app, sometimes this helps.
To your 2. question:
I think you got not notification, because you were notified, when 1 Player was online.
To prevent notification spamming the app won't fire a new next notification not until there were less players online, as you configured.
Otherwise you would get a notification every minute, because your minimum-player count is reached.
Example: (Each row is one check-interval. I marked every row in italic, which would cause a notification, if the check against notification spamming wouldn't be there)
Notification if minimum 5 Players online
-------------
3 Players -> no notification (3<5)
4 Players -> no notification (3<5)
5 Players -> notification
6 Players -> no notification (already notified at 5 players)
...
10 Players -> no notification (already notified at 5 players)
9 Players -> no notification (already notified at 5 players)
...
6 Players -> no notification (already notified at 5 players)
5 Players -> no notification (already notified at 5 players)
4 Players -> no notificiation, but notification cache cleared (4<5)
5 Players -> notification (5>=5)
4 Players -> no notificiation, but notification cache cleared (4<5)
jump to 10 Players -> notification (10>=5)
11 Players -> no notification (already notified at 10 players)
jump to 6 Players -> no notification (already notified at 10 players)
jump to 4 Players -> no notificiation, but notification cache cleared (3<5)
3 Players -> no notificiation
jump to 6 Players -> notification (6>=5)
...
--------------
Hope this helps for understanding.