for me this one was resolved by upgrading. I couldn’t get the regular acf repeaters to work right and this remained an issue (last i left it) but when i moved to acf pro, it seems to be built differently so this doesn’t happen. As a matter of fact i switched from repeaters to layouts and used the flexibile layout builder with repeaters and other stuff in each layout, resulting in even more wysiwyg fields and the like, and it still works fine.
