Conflicts with Elementor

When the plugin is active, you can’t edit a page or post with Elementor. The screen will open, but the Elementor menu is greyed out and has a little blue circular arrow in perma-spin. Have to deactivate the plugin in order to set up the post and then activate again afterwards.

(The link will be of limited use because it doesn’t show the problem as it happens.)

The page I need help with: [log in to see the link]