My apologies for the issues in version 5.7.11.
I am confident we have found and fixed the issue.
Can you please re-download the ACF PRO plugin files and test the issue?
An easy way to re-download is to edit the main acf.php plugin file and change the version number ‘5.7.11’ down to ‘5.7.10’
– please note the version number appears twice in this file and both will need to be changed
– after this change is made, please update the plugin as per normal and it will update to 5.7.11 (including the new fix)