Elementor with other site builders

I’m using Toolbar Extras with Elementor (with Astra Pro) and Fusion Builder (with Avada Theme) on a Multisite. I know it is not ideal to be using two builders on one multisite. However, I’m rebuilding my site to remove Fusion and I don’t have a choice at the moment.

I try to edit a page by pressing Edit Page in the toolbar with Toolbar Extras installed on the multisite BUT on a sub-site that doesn’t have Elementor enabled, the page won’t load and says that the site is experiencing difficulties.

I’m making an assumption that Toolbar Extras is looking for Elementor but it isn’t active on the sub-site.

I have overcome this temporarily by disabling Toolbar extras and re-enabling it when I want to work on the sub-sites that use Elemntor. I can live with that, I’m just letting you know because the situation is not ideal on a multi-site, and I realise that my use-case is fairly unusual.