show me android-notifications log when you receiving notification and it should play custom sound?
[nemo@Jolla ~]$ dbus-send --print-reply --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.freedesktop.Notifications.GetNotifications string:AndroidNotification method return sender=:1.22 -> dest=:1.214 reply_serial=2 array [ struct { string "AndroidNotification" uint32 1760 string "/data/notificationIcon/com.aptoide.partners2130837924.png" string "Aptoide Appstore is working" string "Loading stores" array [ string "default" string "" ] array [ dict entry( string "x-nemo-priority" variant string "100" ) dict entry( string "x-nemo-icon" variant string "/data/notificationIcon/com.aptoide.partners2130837924.png" ) dict entry( string "x-nemo-feedback" variant string "android_notify" ) dict entry( string "x-nemo-preview-summary" variant string "Aptoide Appstore is working" ) dict entry( string "x-nemo-preview-icon" variant string "/data/notificationIcon/com.aptoide.partners2130837924.png" ) dict entry( string "x-nemo-preview-body" variant string "Loading stores" ) dict entry( string "x-nemo-timestamp" variant struct { struct { int32 2015 int32 3 int32 2 } struct { int32 15 int32 0 int32 53 int32 907 } int32 1 } ) ] int32 -1 } struct { string "AndroidNotification" uint32 1752 string "/data/notificationIcon/com.aptoide.partners17301634.png" string "Aptoide Appstore" string "7 uutta päivitystä saatavissa!" array [ string "default" string "" ] array [ dict entry( string "x-nemo-priority" variant string "100" ) dict entry( string "x-nemo-icon" variant string "/data/notificationIcon/com.aptoide.partners17301634.png" ) dict entry( string "x-nemo-feedback" variant string "email" ) dict entry( string "x-nemo-preview-summary" variant string "Aptoide Appstore" ) dict entry( string "x-nemo-preview-icon" variant string "/data/notificationIcon/com.aptoide.partners17301634.png" ) dict entry( string "x-nemo-preview-body" variant string "7 uutta päivitystä saatavissa!" ) dict entry( string "x-nemo-timestamp" variant struct { struct { int32 2015 int32 3 int32 2 } struct { int32 14 int32 47 int32 36 int32 937 } int32 1 } ) ] int32 -1 } ] [nemo@Jolla ~]$