I’ve just discovered this issue while working on a project with ACF Pro and WPML. Has there been any progress on fixing it?
If it’s helpful, we have reproduced the problem with basic installation of WordPress 4.2.2, ACF Pro 5.2.6, WPML Multilingual CMS 184.108.40.206 and WPML String Translation 2.1.4.
You can replicate the problem like so:
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