Dropdown and Checkbox Selection empy – Auto works

Hi,

since updating to new WP-Version and updating my plugins I get the following error. All taxonomy dropdowns are empty: In the example “Arbeitgeber” is a CPT-onomy.
http://imgur.com/ZNeMzxi
Same for checkboxes

When I use Autocomplete it’s working somehow, but the most used feature is not working
http://imgur.com/GG4fgq0

Anyone has a hint?

https://wordpress.org/plugins/cpt-onomies/