While troubleshooting this together with karni and mzanetti, an interesting find is in the ubuntu-push client. It seems to restrict the sound files allowed to be inside /usr/share/xdg.
Could affected people check if they have manually modified what sound they want to be played back from telegram? And change it back to something inside /usr/share/xdg and see if that works? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1413818 Title: Notification sounds aren't being played back on E4.5 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1413818/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs