SSAS error processing the cube.

Hi, I successfully built the cube, Deployed the cube,  and Processed it successfully at least once..  I am now trying to update the underlying data.. I either made changes to the cube it doesn't like, or my underlying data it doesn't like..  

I have refreshed the DataSource View, then built the cube, then Deployed the cube.. All ok up until I process the cube..

The record and fields it is pointing to, seem fine.. Both are of the same fieldtype (Int64).. Both Files hold the value 69324, and I can pull the data together in t-sql with an inner join of tables on these key fields and value.. But the error doesn’t seem to be about the data so much as something about not being able to find the attribute key.. I have no idea as to what it is trying to tell me to fix..
CubeProcessingproblem.jpg