*** This bug is a duplicate of bug 1812407 *** https://bugs.launchpad.net/bugs/1812407
What I can't explain here, is the ghost window that seems to appear for Virtualbox: there is alternatively one or two dots next to Virtualbox icon in the dock (while there is no need because no VM/ no secondary instance of this app is launched) I realised this thanks to the focus bug #1812407 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1812996 Title: Dock focus bug with Virtualbox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/1812996/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs