Dash to Panel not showing running indicator for Nautilus

Solution 1:

I spent a few months with this problem, and finally found a solution. Set:

gsettings set org.gnome.shell.extensions.dash-to-dock isolate-locations false

and log out of/log back in to your gnome session. After this, nautilus will work correctly in the taskbar.

Found the solution here:

https://github.com/home-sweet-gnome/dash-to-panel/issues/1500#issuecomment-975520406