So here we go again... Is anyone going to respond and get this figured out? What do I need to do get on my knees and beg for help?

Provide screenshot of the configuration of your menu item with the parameter or create a video that show all the configuration in joomla.

We need a detailled scenario that show how to reproduce it.
So we need screenshot that shows the values that you used.

See our demo for an example of configuration.
tutorial.jms2win.com/joomla/multisite-12...ingforjms/index.html

As mentioned in previous post, we retry reproducing it and without any success.
For us, it is working and we don't know which specific parameter that you would used to have this problem.

If now you want that we have a look directly on your server, we also have a billable support that you can order at
www.jms2win.com/en/joomla-multisite?page...35&category_id=1

HA HA!! Yeah right. So I buy a product from you that doesn't work upon installation, and you tell me that you can help get your product to work if I pay you more money!?!?! No.. no. no. That's not how it works. I'm so frustrated at this point, I would just like a total refund of my money, I'll uninstall the product, and look someplace else for what I need on my site.

Please just refund my money at this point.

The error is due to the JATabs system plugin that enter in conflict when rendering a shared article. The JATabs declare a joomla article instead of a shared article when the page to render is a shared article.

Disable the JATabs system plugin resolved the rendering of the shared article.

JATabs must be fixed as following.
If the page to render is a "com_multisitecontent" then use the multisitescontent
Otherwise, use the normal com_content.

if ( JRequest::getCmd( 'option') == 'com_multisitescontent') {
require_once JPATH_SITE.'/components/com_multisitescontent/helpers/route.php';
}
else {
require_once JPATH_SITE.'/components/com_content/helpers/route.php';
}