Hi Nigel,
the new Toolset-Form Widget in Elementor does not work properly. When I place the form widget into Elementor Section, it displays correct, but when you preview the site or see the life-page, only the shortcode is being displayed. Please see attached screenshots.
However, a workaround is to choose the Shortcode-Widget in Elementor and place the Form-Widget-shortcode into it. Then the form will be displayed on life-page as well as in preview mode.
I just tested this and couldn't see the same problem.
I designed a page with Elementor, inserted a form with the widget, it immediately showed a preview of the form, and when I clicked to see the preview of the whole page it displayed correctly, and when I saved the page and visited it on the front end it also displayed correctly.
Can you double-check that you have the latest versions of Toolset and Elementor installed.
Try clearing your browser cache and performing a hard reload.
If that doesn't help, then maybe there is some third-party code interfering. You would need to disable other plugins and switch theme to twentyseventeen to confirm if that was the case.
Just to let you know that although I couldn't reproduce this issue, others could, and it should be fixed in a Views update which is expected early next week.