I made the same discovery on Sunday, September 8th. I contacted Wyze support and was told that they removed the ability to set customized sounds for the app and that there are 3 or 4 standardized app sounds for everyone to use to make it “distinct” for the Wyze app. I informed them that the available sounds are not “distinct” to the Wyze app and can be downloaded by anyone on many apps available in app stores and for my safety and security of my property, I relied on a specific notification sound that would wake me from a sleep when I need to be alerted of activity on my property. None of the current available sounds will wake me from a sleep. I’m extremely disappointed that they took this option away from us and now my safety and security are compromised. They offered the suggestion of joining the forum and expression my concerns to possibly be considered for future enhancements.