It looks like if you were to open your browser dev tools you might see an error in the console, and if you do it will probably point towards a PHP error on the server.
Can you check the browser console, and also you PHP logs.
If you haven't already, turn on the debug log by editing your wp-config.php file and change the line with WP_DEBUG like so:
That will create a debug log called error_log.txt in your root directory (the same location as wp-config.php) which you can examine in any text editor. Try visiting the same page where you observe the problem and then inspect the log. If you don't find the debug.log file it means it didn't generate any warnings or errors.
Hi Nigel,
Nothing returns after activating debug.
I also deactivated a few plugins and the issue remains.
The relationships are working. Only the relationship page in back-office can't be accessed.
I'll be pushing this site live in a few hours and then I can deactivate all plugins to see if there is any incompatibility, and give you access if you want to take a look.
Pls keep this ticket open and I'll update it soon.
Thanks,
Antonio
Let me set up a private reply so I can get credentials from you. If there is a staging site, better, if not I can take a copy from the live site to do some simple conflict tests. You may want to create a temporary admin user for me to use that you can later delete.