Update: Suggestion didn't help unfortunately with my phone screen off I used to have an LG G6 and calls would ring-in fine with Knock Knock and Duo's ringtone. Now on my V60, it shows Knock Knock but the ringtone doesn't play. Or it does, but for a split second. I get the missed call notification afterwards with my default sound, but I wouldn't realize it was from a call. Sometimes the hang up sound plays before it, though. Currently just using Messenger to call which is less ideal. Help!