Protected Content Conflicts with WPBakery Visual Composer "Tour" Element

I'm currently using the Vellum Theme for a project. Vellum comes with WPBakery Visual Composer, which we use extensively.

Recently we noticed that when we try to embed the "tour" element into a page, that the element displayed oddly. (It had not done so previously). To troubleshoot this problem, we methodically disabled and re-enabled the plugins on the site until we found the culprit.

It appears that "Protected Content" is the problem plugin. The attached images show the "tour" element with Protected Content de-activated (tour element displays properly) and with Protected Content activated (tour element messed up).

As we need to use Protected Content ... the only choice we have is to not use the WPBakery "Tour" element anywhere in the site (which is unfortunate) or somehow try to fix the issue in Protected Content.

Any insight here would be much appreciated.

Thanks -Jeff