default sound

Hi everbody, I have a Zenfone 3 and about two weeks ago, I flashed LineageOS on it. I'm very happy with it, except of this particular annoying bug. I have alarms every 15 min from 6am to 10am, because of my stupid work that has very various shift hours. So I activate the alarms I need...

I just got my phone on Thursday and everything seems to work fine with the exception that I get the default beep of it every 5 minutes but without any visual notifications. This is what I have done so far to remedy the problem: - Uninstalled/Deleted the email app(since there is a similar...