AEM Cloud: how to clone part of a site to another site - always get "Error".
we have several sites being served from one instance.
In the clouds website editor (not sure what its called), we have the structure:
Campaings (we dont use this)
OurCompnay
----SiteA (this is an SPA Root template)
--------uk
------------en
----------------home.html
----SiteB (this is an SPA Root template)
What we want to do is copy en and all its children from SiteA, to "de" on site B, with the desire to end up with this:
---- SiteB
--------- de
------------ home.html
The could only seems to have one option: you can click on "copy" at the top on the "en" node, then select the SiteB node, and hit paste. This then has the option to copy what they call a "site" (its not a site, its just a subsite), to the new location, which we are calling "de". However, when we do this, after about 30s, it always comes back with "Error!"

Then when we try to delete "SiteB", even though it has no pages, and no references, the deletion fails with "Selected items are referenced by 32 pages" which is not possible - there are no references to this site.
How can we copy or clone the site to a new site (which has a slightly different structure, no "country" folder.)
Maybe what we are trying to do is not possible with AEM Cloud?