I encounter the same problem as https://dev.cancel.fm/tktview?name=0a1c7617cb and it doesn't seem to be caused by desktop environment to me. I use latest KDE on Manjaro and I use some Qt of apps with native notifications: birdtray, telegram, you name it. And it never occurred with any of them. They say telegram desktop fixed this issue using QtDBus in this request https://github.com/telegramdesktop/tdesktop/pull/6825 This really stops me from using your otherwise great app and I'm not considering changing desktop environment because this is the only Qt app I have such problems with.