Same problem with me. The notification sound is skyline. I updated to the recent security update, since then for every 15 to 30 min I'm getting this skyline notification sound. So irritating and annoying.
We acknowledge your query and apologize for the same. We would request you to register your concern in Samsung Members Application. So, our concern team gets back to you as soon as possible.
Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
Note. please attach the error log file within 15 minutes of the error occurring.
