WP 4.1.1 + ACF 188.8.131.52. Still have this issue on attachment pages slash attachment permalinks. Somehow the attachment image gets included/injected in all following wysiwyg fields after the attachment (as in the footer in my case). This is really weird and if I remember correctly this actually have been solved in a earlier version, so I suspect it’s a bug that has come back.
Let us know if you can have a look on this issue..
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