I'm also having the same issue on two installs of Ubuntu 22.04. For me it happens when my monitor goes to sleep and locks my session. After entering my password in the login screen the icons turns into three dots.
Sometimes when I click on the icon it turns back to normal but sometimes it doesn't.
I'm also having the same issue on two installs of Ubuntu 22.04. For me it happens when my monitor goes to sleep and locks my session. After entering my password in the login screen the icons turns into three dots.
Sometimes when I click on the icon it turns back to normal but sometimes it doesn't.