Could you please share some screenshots of the issue? Also, could you please share the JSON or XML export file of your field group so I can test it out on my installation? Please let me know how did you find the issue too (the steps that mostly will reproduce the issue).
It’s possible that there’s a conflict on your site. In this case, could you please try to reproduce the issue on one of the WordPress’ stock themes (like Twenty Sixteen) with other plugins deactivated? If it disappears, then you can activate the theme and plugins one by one to see which one causes the issue.
It’s also possible that the issue is related to your server settings. Could you please try the solution on this page: https://www.advancedcustomfields.com/resources/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!
© 2022 Advanced Custom Fields.