Download Advanced Custom Fields Pro 6.4.0.1 from nulled fire. Advanced Custom Fields Pro unlock ACF v5 plus the repeater field, flexible content field.
* Fix: A possible fatal error no longer occurs in the new site health functionality for ACF PRO users
* Fix: A possible undefined index error no longer occurs in ACF Blocks for ACF PRO users
* Security Fix - ACF Blocks no longer allow render templates, or render or asset callbacks to be overridden in the block's attributes. For full information, please read [the release blog post](https://www.advancedcustomfields.com/blog/acf-pro-6-2-10-security-release/)
* Enhancement - The Select2 escapeMarkup function can now be overridden when initializing a custom Select2
* Fix - “Hide on Screen” settings are now correctly applied when using conditionally loaded field groups
* Fix - Field names are no longer converted to lowercase when editing the name
* Fix - Field group titles will no longer convert HTML entities into their encoded form
