Hello,
We just manually imported uninstalled elements. I am not sure why it was not installed correctly from the first time (we don’t have such problem with the demo content on our test site).
Additional pages of any version can be imported from here – http://prntscr.com/phtzou
WordPress 5.x use Gutenberg as a default editor. We would recommend to disable the Gutenberg editor and use WPBakery page builder as the page editor because it’s more advanced – http://prntscr.com/phu0ut
Is there anything else I can help you with?
Regards