This is normal and a common GUI design decision. Tooltips that appear immediately are usually considered too distracting because in most cases the mouse is moving over (past) something and not stopping on it. So a tooltip that almost immediately appears and then disappears just looks like a bug.
** Changed in: gnome-shell-extension-ubuntu-dock (Ubuntu) Status: New => Opinion -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell-extension-ubuntu-dock in Ubuntu. https://bugs.launchpad.net/bugs/2107749 Title: Delay displaying app name on hover when mouse not moving from another icon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/2107749/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs