There seem to be an issue with the New & Updated category in discovery. Many games are getting in & out every like 20-30 minutes and i also notice a verry low player count on many of the games even in the first 2 rows.
We recently made changes to the New & Updated row in Discover so that it now refreshes more frequently (more info here). Tested islands will continue to be tested until they reach 50K impressions, meaning that if a tested island hasn’t received 50K impressions, it can be shown in New & Updated again.