OK, so I got a full copy of the site, updated ACF (repeater was already at lastest), changed themes, and disabled all other plugins. Same issue.
For the record my repeater fields sound a little simpler … they are not nested, but I have a lot of them.
The symptoms are the same — I can add rows just fine, but I cannot delete any rows. This is a fairly complex CPT in the sense that it has many fields. All of the repeater fields show the same behavior, and all posts within this post type are affected, including newly created ones with bare content (one repeater row only — nothing else).
No errors in the apache error logs.
I would be glad to tackle this at the code or mysql level, if anyone can get me started with that.
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