Thanks for the attachment.
Yes, the issue is definitely related to the size of the flexible content field.
The current ACF data architecture does not allow for such massive field sizes, so I am unable to help fix this issue in ACF4.
In ACF5, this will no longer be an issue, as each sub field is saved as a unique entry to the DB. This will prevent the flexible content field from becoming so big that it can’t save.
Sorry to not provide a solution as yet, but please wait for v5 to use a flexible content field at this size.
perhaps a temporary solution is to increase your server’s max_vars setting + PHP memory – http://www.advancedcustomfields.com/faq/limit-number-fields/
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users
Helping others is a great way to earn karma, gain badges and help ACF development!
The ACF site is currently experiencing some issues.— Advanced Custom Fields (@wp_acf) September 21, 2022
We apologize for the inconvenience and we are working hard to get it back up and running as soon as possible.
© 2022 Advanced Custom Fields.