There should not be any limitation. Just make sure you are using the latest version of the Governance Dashboard (2.0.2) or the attached beta version.
thanks for your confirmation.
Anyway I found the issue.
In this environment we have many "parallel" folders (i.e. D:\A, D:\B, D:\C, ...).
In the Configuration sheet I set the File Path directory as the Root folder of the disk (D:\, where we don't actually have any .qvw file).
During the reload I was given an error like "Expression table not found" (I don't have the log neither neither, my bad), which was quite misleading.
After some test, I tried changing the folder to one that actually have at least a .qvw file... and it fixes the issue.
I thought that the governance would automatically cycle inside the folder and subfolders too...
Seems like I'll have to use a User configuration script and set create a concatenation of all the folders and subfolders we have