Custom notification sound

[john_kissane]

I wanted to use a custom notification sound but the phone won't allow me to select the file & gives the error message shown in the screenshot. The sound file
was originally an mp3 file but I converted it to ogg just in case the zenfone 6 didn't like mp3's. Any suggestions for how I can use the sound?
The error comes when I use the '+' button & then the file manager to select the file location in the Notifications folder on internal storage. Original file is also attached.

[john_kissane]

I tried that as well but the phone says setting system sound failed. The other file shown in the screenshot is my ringtone which works correctly. This used to work in Android 9 for me as well.

[kooldude7285]

i tried it did work... set as default notification

[john_kissane]

Thanks for trying it but like mentioned it doesn't work for me. Error message as shown in the screen shot.

[_jis_]

If even such a simple thing doesn't work, I wouldn't think a second and put the phone into a factory reset, because something is obviously completely wrong.

[john_kissane]

I considered that but can live without a custom notification sound just to avoid having to do all the set up again. Is anybody from ASUS able to comment on this?