I am also affected with HPLIP and Nextcloud. Icon's do not display as there is no System Tray. Killing the apps and restarting them works, so the "delay" is likely the issue again.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell-extension-appindicator in Ubuntu. https://bugs.launchpad.net/bugs/1908921 Title: No system tray detected by hp-systray Status in gnome-shell-extension-appindicator package in Ubuntu: Confirmed Bug description: I have hp-systray -x as one of the startup applications when I login. This app exits with the following error: HPLIP Status service No system tray detected on this system. Unable to start, exiting. Once logged in, if I start hp-systray -x from the terminal it works fine. This started happening after updating gnome-shell-extension- appindicator from version 33-1 to version 33.1-0ubuntu0.20.04.1. Thanks ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell-extension-appindicator 33.1-0ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Dec 21 11:41:23 2020 EcryptfsInUse: Yes InstallationDate: Installed on 2016-06-10 (1655 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) PackageArchitecture: all SourcePackage: gnome-shell-extension-appindicator UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-appindicator/+bug/1908921/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp