Hi @NickBS
I can guarantee that the issue does not stem form the repeater field.
The issue sounds like a conflict in the global $post object.
In your page template, can you dump out the global $post object. Is the post->ID correct? If not, you will need to do some debugging to find out why, but the problem will not be from ACF, but perhaps from cache such as the other thread decribes
Thanks
E
