The link (on the projects page and the view page) to download the workbook from the server is showing up properly in the browser, but clicking it now returns the error below. Never had a problem prior to upgrading the server to 7.0. I've also tried server>open in desktop client, the workbooks on the server are listed, but I'm getting an error (with no description) attempting to open them that way as well.
You don't have permission to access /workbooks/AOEOnline on this server.
I believe you already have gotten a response from our Support team. However, in case anyone else runs into this issue, it is a known issue that our Engineering Team has corrected and should be fixed in the next Tableau Server maintenance release.