Nope... Only getting one result. You can check here:
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"supercontrol-id" is the actual key (instead of "custom-id") and obviously I also modified it in the code. It does not work even by using the graphical multi-select.
Thats really strange. Let me check on your install. Can you please share access details.
*** Please make a FULL BACKUP of your database and website.***
I would also eventually need to request temporary access (WP-Admin and FTP) to your site. Preferably to a test site where the problem has been replicated if possible in order to be of better help and check if some configurations might need to be changed.
I have set the next reply to private which means only you and I have access to it.
Well - I checked the view and I see you were using the equal to comparison.
I changed the query filter to "IN" and I can see its working as expected as well as there is no need to add the code you added to functions.php file (I already commented the filter):
Please check the following screenshot:
=> hidden link