I have installed the last beta because if you read the changelog, several modifications for this in beta since several versions.
I not forced manually like JoeyD but all cloud drive with problems are forced upgrade at unlock, it's indicated and fast.
(maybe hybrid Flat/Hierarchical, because explanations in changelog)
More details in changelog in http://dl.covecube.com/CloudDriveWindows/beta/download/changes.txt
In .1305 .1307 ...
And after upload is good for me.