I am having a very similar issue. But mine happens on relationship fields. I never had any issues until we upgraded to 5.0 pro.
I do also have a couple repeater fields.
Finally, and likely part of the issue is that we have about 38k posts in the database and about 10 million entries in the post meta table.
Maybe an option to disable the AJAX would fix it. Not sure.
Not sure what to do but it’s somewhat urgent so if you’re able to do anything to help that would be amazing!
Thank you for the exellent software!
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