if I click on edit toolbar button and delete a button, in the toolbar edit the button is removed, while in the toolbar the button is still visible. To update the toolbar you need to restart Rhino.
I hope that the report will be appreciated even if it is a marginal issue.
I would also add that if you close the Container by clicking on the “X” the check remains in the listbox,
in this case you have to close the Container Manager and then reopen it