I am using apps like Sleepo to get easier to sleep. But since I switched to FP3 there are some issues with these apps. Sometime these apps seems to have problem to mix the different sound layers. Sometimes the volumes suddenly rises a notch and fade back to the original volume. The problem seems to happen when master volume is below about 60 to 70 percent. I get the feeling that it might be in connection with Issue 54158
Hopefully its only a software issue.