Before I went and logged a bug over at issues I wanted to see if anyone else was experiencing this issue or if it was just me?

I have a site with the following structure. (simplified for brevity sake)

Home
-Tenders
--Tender1
--Tender2
Tender Archive

I have created a UserControlWrapper datatype which is a simple button that allows content editors to quickly archive tenders to the tender archive Node.

The guts of the code that I am using to do this is

var cs = new ContentService();
var page = cs.GetById(Int32.Parse(HttpContext.Current.Request["id"]));
cs.Move(page, ConfigHelper.GetArchiveRootAsNode().Id);
cs.SaveAndPublish(page);

This all works well in the back office, the node is moved and its Path details etc seem correct in the Cache file (umbraco.config) however, in the cache the page is still positioned as a child of Tenders.

If I use the standard backoffice right click move the document is moved correctly to the archive and the Cache is updated as expected.

There are no events that are doing anything else.  Does anyone have any ideas what could be going on? or is this a v6 bug?