Paying for storage, can't sync some folders not others
I'm paying for 2 GB of storage. I wanted to free up some of my 2 GB in advance of a big writing project I'm about to undertake. I two group libraries that are not active. I wanted to keep the files on my desktop but delete them on the Web Library to free up some of my 2 GB. I went to Preferences > Choose Libraries and deselected the two groups. Then I deleted the files on the Web Library. The next time I sync'd, the files in the deselected desktop group libraries were deleted. Why did Zotero sync libraries I had deselected and delete those files? Is there a better way of removing files from web storage but not on the desktop? I'm resigned to the fact that I've lost all of those entries and the attached PDFs. Thanks in advance.