After the upgrade from 5.9.3 to 5.9.4 clicking on telegram icon in the systray does not open the telegram window
*** This bug has been marked as a duplicate of bug 365308 ***
Bug 365308 is unrelated to this issue here. It's an upstream problem, since it was triggered on Telegram update to version 1.0.26. See here for more details: https://github.com/telegramdesktop/tdesktop/issues/3132 https://github.com/telegramdesktop/tdesktop/issues/3175 https://github.com/telegramdesktop/tdesktop/issues/3177 Apparently somehow the QSystemTrayIcon functionality stopped working altogether. That the context menu still works, is because it falls back on using libappindicator instead. Marking this bug as RESOLVED UPSTREAM.