I am following the tabs instructions here: https://docs.metabox.io/extensions/meta-box-tabs/
Here is my setup:
https://tinyurl.com/25nf6nvd
When I create/edit an entry, this is how it displays.
https://tinyurl.com/24vyz7z5
The tabs display at the bottom but they are empty (red arrow)
In addition, the tabs display as fields with inputs (green boxes)