google app engine - Cannot delete version

Question

I cannot stop or delete versions of a project created as it was created as a flexible environment within the EU. I understand the restriction by region but cannot work out why it cannot be removed.

jamie@dartmoor-1320:~$ gcloud preview app versions delete 20160607t131220
Deleting the following versions:
 - dartmoor-1320/default/20160607t131220
Do you want to continue (Y/n)?  
Deleting [default/20160607t131220]...failed.
ERROR: (gcloud.preview.app.versions.delete) Issue deleting version: [default/20160607t131220]
[default/20160607t131220]: Error Response: [13] Managed VMs can not be hosted in the application's region. (e~))

The GUI fails too but with a non descript error message.

Answer 1

Waitting for answers