Unanswered: cube has been updated by the server, data is now obsolete
Client issues query which sends out individual requests to the 2 OLAP servers that are load balanced. The client evaluates the versions of the returned record sets to ensure the consist data being returned for one single query. Otherwise, this error will be seen:
The cube has been updated by the server the data is now obsolete.
These servers sit behind a cisco 11506 CSS with load balancing based on balance type: least busy server, also persistence based on cookies.
My developer says this worked fine for a long time then just 'started happening'.