Hi Sean,
I have multiple dev environments you can test this on.
The are expressly for testing woocommerce… https://woo.simplecsr.com is a good example.
I can provide full admin access to this site and you can test anything out there.
Can you please provide an email or secure system to send you the site admin details.
The issue is specifically when there is no selection made in the Tags section of global addons.
I am using a radio field type.
This dev site did not have any existing addons and is a fresh install of your plugin with a new global addon created.
This site is on a default theme. I have disabled all plugins except this addons plugin and woocommerce. It is latest woocommerce and wordpress.
Please let me know how i can supply private access to you.
Thanks
Chris