I love this plugin, and am very close to rolling out an update to a site using it, but am having trouble with the import XML feature in 3.5.1.
I have created the field group in a local dev environment, and then exported the XML (to a different local dev environment actually), but get an error on the merge_array function in several places after the import. This shows up when I try to edit the field group, on the page that uses the template which utilizes the field group, and perhaps other places as well.
I saw a post in the forums on your plugin site regarding this, but don't have credentials on your site. Hopefully you don't mind me posting here as this really isn't exactly a duplicate post.
Warning: array_merge() [function.array-merge]: Argument #2 is not an array in D:\xampp\htdocs\dev\wp-content\plugins\advanced-custom-fields\acf.php on line 658
I looked in the XML export and also found an error there:
<b>Notice</b>: Undefined index: value in <b>D:\xampp\htdocs\trunk\wp-content\plugins\advanced-custom-fields\core\views\meta_box_fields.php</b> on line <b>245</b>
I don't currently have this anywhere live (until I figure this out), but would be glad to send/post the XML export file if you tell me where you'd like it.
Thank you very much for your help and a great plugin!