Notifications not going away
I've updated the game multiple times - I just recently switch my game to a new phone and Temple Run 2 keeps telling me I have artifacts I have yet to collect coins for. However I've already collected them but the notifications won't go away. 
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Why is a notification stuck on my screen?
1 Solution That's look like just a small software issue, make sure to back the phone first, then do a factory reset : Powered off you phone, press and hold the \u201cVolume up \u201cand \u201cBixby\u201d buttons. Continue to hold both buttons, then press and release the \u201cPower\u201d button to power the device on.Why are my message notifications not going away?
Cache memory is stored by the Android operating system to make apps more responsive to user inputs. However, sometimes the existing information in cache memory can cause the message not sent notification won't go away issue. It is worth a try to clear to cache and data of the messages app.How do I get rid of notifications on Android?
To clear one notification, swipe it left or right. To clear all notifications, scroll to the bottom of your notifications and tap Clear all....Snooze a notificationHow to Fix Gmail Notifications Not Going Away
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