https://bugs.kde.org/show_bug.cgi?id=503286
--- Comment #2 from Frederick Zhang <frederick...@tsundere.moe> --- > Could you please check and see if the same issue occurs in a Wayland session? Yes, I have the same issue in Wayland unfortunately. Note that to reproduce this issue, you really have to trigger Toggle Present Windows *immediately* after moving your cursor to Thunderbird's message list. If Toggle Present Windows is triggered too late, even just by a few tens of milliseconds and a tooltip is already fading in, the issue won't happen. I encounter this issue relatively often since I assigned a button on my mouse to Ctrl-F10, otherwise I probably wouldn't have noticed. And btw I use NVIDIA with its proprietary driver (nvidia-dkms 570.144-1). Not sure whether it's relevant. -- You are receiving this mail because: You are watching all bug changes.