I have MB AIO and yesterday I set up a relationship from posts to a custom post type. I selected to show the relationship in the "all posts" admin view as a column and then used MB views to display it in Oxygen. Everything worked great until today I noticed it was suddenly not displaying.
Here I am after hours of troubleshooting with no solution. The relationship shows as a field in the Gutenberg sidebar but the admin column and MB views do not detect any relationship.
I tried selecting all combinations of posts and custom posts, recreating the relationship and MB view but nothing helps. There are no PHP errors.