Save custom posts, the problem occurs when trying to click the save button.
Link to a page where the issue can be seen: hidden link
simply follow the link when logged in and try to add a new bonus
Answer from RankMath support team:
Hello,
I was able to reproduce this issue on my site. The Toolset plugin developer is prefixing the 3rd party validation js script handler which is causing problem. As per the WordPress guidelines, 3rd party scripts handler should not be prefixed to prevent it from loading twice. Please contact the Toolset plugin developer and ask them to use validate as script handler instead of wptoolset-form-jquery-validation.
For now, you can replace ‘wptoolset-form-jquery-validation’ to ‘validate’ in plugins/wp-views/toolset/toolset-common/toolset-forms/classes/class-validation.php & plugins/wp-views/toolset/toolset-common/inc/toolset.assets.manager.class.php.
Thank you for contacting us and I'd be happy to assist.
I've performed some tests with a similar relationship and Rank Math SEO plugin, but couldn't reproduce this on my test website.
It seems something specific to your website is involved and I'll recommend making a complete backup copy of the website and then testing this again, with all other non-Toolset plugins (except Rank Math SEO plugin) and custom code removed/disabled.
To rule out any code conflict from the theme, you can also temporarily switch to a default theme like Twenty Nineteen.
If adding a new related Bonus post works, you can start adding back the removed items, one-by-one.
During troubleshooting, I noticed that the issue is reproducible with the Rank Math SEO plugin active when the post type includes an image type custom field from Toolset Types.
We appreciate you brought this forward and I've shared these findings with the concerned team for further review.
I'll keep you updated on the progress through this ticket.
