I recently changed from Ubuntu 18.04 to Ubuntu 20.04 and overall I'm very pleased with 20.04, however one odd thing I've since experienced is that Slack (desktop version) does not successfully play the typing-like sound when a message is received. The icon on the top right still has the circle turn red.
If I play a YouTube video I hear it well so I know my speakers are working.
In Settings under Sound, then Alert Sound if I choose different sounds these work:
In Settings under Notifications, then Slack, I have Notifications and Sound Alerts turned on:
Within Slack itself it seems I have things set correctly:
On this last screen if I press Show an Example or change the setting under the Notification sound drop-down I am able to hear the different sounds from within Slack, but they still don't play when a message arrives.
This may sound like a trial matter, however it's caused me to not respond to some urgent messages when working from home recently and therefore is a significant concern. Unfortunately I don't always notice the small circle in the top right corner turning red if I'm really into what I'm doing.
I've tried uninstalling and reinstalling Slack, no change. I never had this problem with Ubuntu 18.04.
Has anybody else had this happen or is there anything else I should check?