[Google Drive: The limit for this folder's number of children (files and folders) has been exceeded]

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)

Quote

Created a new chunk organization for Google Drive called Hierarchical Pure.
    - All new drives will be Hierarchical Pure.
    - Flat upgraded drives will be Hierarchical, which is now a hybrid Flat / Hierarchical mode.
    - Upgrading from Flat -> Hierarchical is very fast and involves no file moves.

 

More details in changelog in http://dl.covecube.com/CloudDriveWindows/beta/download/changes.txt

In .1305 .1307 ...

 

And after upload is good for me.

[Google Drive: The limit for this folder's number of children (files and folders) has been exceeded]

I have too, it seems there is a new limit by google, max 500k items in one folder. (files and folders)