If you are making changes to a linked object measure group after you have created the initial link, such as adding a new measure, you can come across the following error when you next deploy the solution.
"Errors in the OLAP storage engine: The metadata for the statically linked measure group, with the name of XXX, cannot be verified against the source object."
When I first came across this I expected just changing the Deployment Mode to Deploy All would fix it but this doesn't appear to be the case.
Then I thought restarting the AS service would flush and reload the memory held metadata - no effect.
The only way round this is:
1) Backup your Analysis Services database.
2) Delete the database.
3) Redeploy the underlying linked cube and reprocess.
4) Delete and recreate the link between the two objects.
5) Redeploy and reprocess the rest of the Analysis Services database.
Hope that helps.