I have been using your plugin with GF for a couple years in the following fashion:
I have an edit post form which passes the saved values for some post meta and a couple taxonomies as URL vars to the edit post form. I have identical dropdowns set to populate with 2 different taxonomies' terms, and one works to edit the taxonomy value when the form is submitted, the other does not.
The 2 taxonomies are 'entrycategory2013' and 'entrycategory2014'. The second menu correctly populates with the passed-in value, but does not save that value on form submit. ?? Was there a change made to the way the plugin works recently? I notice that you can add a text input and have its value save to a taxonomy, but my entrycategory2013 menu (set to populate with that taxonomy's terms) also works to save selected value to the post. Any idea why the new menu is not working the same way the older one does?
Is it possible that having 2 taxonomies whose name only differs by those numerics is problematic?