Not A11 pb, it's since A10 : Notification sound unidentifiable every day and impossible to stop

[heyoka]

Please tell us some basic information before asking for help:
Model Name: zenfone6
Firmware Version:18.0610.2009.63
Rooted or not: not
Frequency of Occurrence: every day since at least one year
APP Name & APP Version (If your issue relates to the app): that's the question....
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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Hello, every day I have my notification sound at 8h30am, even if I put sound notification at volume zero! (Unbelievable but true!)
I never found what causes this sound, I took a look at all apps possible
I put all notifications apps to silence (except messaging apps)
I have no visible notification which could indicate why it snoozes
Does someone have an idea how I could identifícate the origin of this?
This happened too when on Android 10, it's not a new problem due to beta 11

[heyoka]

I just wait for a way to find from where this sound notification comes so I could stop it, it's annoying to have this sound every day at 8h30am because I'm at work and do not disturb mode or sound notification at zero don't change anything...

[_jis_]

Did you check the Notification log?

[heyoka]

Do you mean this?

If yes, there is no notification at 8.30am, and all apps you see in my screenshot are in silent mode except"messages"
It's a mystery.

[_jis_]

No, I meant the Notification log that's been built in Android since Jelly Bean version 4.3:
Android 4.3: How to get the notification history

[heyoka]

Ok thanks,
With notification history I saw notifications from"qwant" which are not silent, I put to silent, 8h30 is in ten minutes, if there's still the sound I'll try safe mode tomorrow