Sorry Hendric,
Unfortunately my answer isn’t going to help you much. I had another plugin that was working with ACF but conflicts with ACF PRO. I disabled the other plugin and ACF PRO works correctly.
Hi Henric,
I am having problems saving values to ACF Pro as well. I update the fields but when I save the page, the updates revert back to the original values. Also using WordPress 4.1 and ACF PRO 5.1.7.1