Problem:
One Custom Post disappears after clicking radio filter
Solution:
User was using the outdated Toolset plugins.
We always recommend running your site with the latest stable release plugin version.
*** Please make a FULL BACKUP of your database and website.***
Please make sure you update ALL Toolset plugins to it's latest officially released version. You can download the latest plugin release from your accounts page:
=> https://toolset.com/account/downloads/
Problem: I have a post relationship configured to allow 12 related child posts. I have added 11 related child posts, but now I cannot add the 12th related post.
Solution: Check the trash for previously related child posts. Restore the post temporarily and disconnect it from the parent post, or permanently delete the child post. Then you can add a 12th related post.