Workspace indicator shows ghost window
I have 6 static workspaces and I use, amongst others, Auto Move Windows and Workspace Indicator extensions.
After I start my session a couple of programs are started automatically (Firefox, Thunderbird) and moved to workspaces 5 and 6. The Workspace Indicator widget shows these programs on their workspaces but also always shows a ghost window on the first workspace. When I open activities there is no window associated to the first workspace. If I use the cursor to move the window in the Workspace Indicator widget it will move one of the automatically started programs from workspace 5 or 6 to the chosen workspace. The ghost remains in the first workspace and I can repeat this indefinitely.
I'm using Archlinux with Gnome Shell 40.0 and the packed version of gnome-shell-extensions.
Here you can see the indicated program in the first workspace in the Workspace Indicator widget that is not shown in the workspace indicator in the activities overview.