As of version 5.8.4 (Pro) the issue is NOT resolved. I get this error message when trying to edit a field group: Fatal error: Uncaught Error: Maximum function nesting level of '256' reached, aborting! in /Users/petermumford/Documents/network/wp-content/plugins/advanced-custom-fields-pro/includes/acf-utility-functions.php on line 81
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