Generally, that indicates that addons failed to load. Now you need to track that down.
Both of those addons need a prerequisite.
Did you check the Addons tab of the Addon Manager for “uninstalled” addons? (Remembering to select the “All” filtering for Audiences and Statuses)
I believe that you will see a Requires button that indicates that ypu have not fulfilled a required manual install of an external library.
No, no. Both add-ons works fine. It’s just the icons in the toolbor that are missing. I guess that the shown icon is a standard replcement, for when the add-on’s icon is not found.
I have the same Mac issue with 6.0 icons using default but 5.2 icons okay. I use Library/Application Support/gramps/gramps51/plugins
and Library/Application Support/gramps/gramps60/plugins
so it is not the plugin folder.
When I run gramps6.0, I get a warning:
Gtk-**WARNING** **: 10:24:46.177: Found an icon but could not load it. Most likely gdk-pixbuf does not provide SVG support.