No alert sound for Messages

[DomC]

I just set up a new Mini and for some reason I can't get the alert sound for Messages to work. If I go to the Message prefs and choose a sound, I hear it. But if a new message comes in, I get a visual alert but no sound.
I've checked system notifications and anywhere I could think where sound is an option, and even reset PRAM. Still nothing. No issue with Mail alert sounds, just Messages.
I figure this is a Mojave issue and not the Mini, but who knows.
Any ideas?

 

[jpn]

Hi
A possibility is:
Are you using yr iPhone at the same time time and in close proximity to yr Mac?
If so, it won't make a sound on yr Mac since it understands you are working on yr iPhone.

 

[DomC]

Phone isn't an issue. I hear nothing whether it's right beside the Mini or in the other room. Plus with my previous machine and OS alerts would makes sounds on both at the same time.

 

[DomC]

Finally found the issue. Audible notifications for Messages and Reminders now require the "Play user interface sound effects" checked in the System prefs. I never have checked this in other OS versions since the sounds are kind of hokey and the apps didn't require it.
So now I can hear when I get new Messages, but also get the goofy sound when I empty the trash.
Oh goodie.