Board Thread:Game Discussions/@comment-25634143-20161020180947/@comment-4199297-20161031131618

Sounds like 1 device is using the global server and the other is using the EU server and cross server transfer isn't possible. Not sure how to force your new device to global server. (uninstall KnD, VPN to outside-EU or use google account with outside-EU address and then re-download?)