Editing of existing Block Slider not allowed for editor role

Very nice plugin! However I guess some bug might be present… When logged in as a user with the editor role it is not possible to edit an existing Block Slider. When the admin menu item ‘Block Slider > All sliders’ is clicked, the page “You have no permission to access this page” is shown. At first, I thought this was because the already existing Block Slider was created by another user. However, when the logged-in user created a new Block Slider via the ‘Block Slider > Add new’ menu item, which is possible, this same user can’t review its own Block Slider via the ‘Block Slider > All sliders’ menu item!?! So it seems to me that this is a bug?