Not got completely to the bottom of it yet, but I think the problem of the FTP function sticking then timing out, sine the last update, is actually a fault with the 'export website/html' function.

The only way I can get the site to upload is to manually choose a new folder or location for the exported html, and then use Filezilla to upload. I've tried finding if the files are corrupt but that isn't the problem at all. Using the auto export and ftp seem to the be the issue.

Got a support ticket in trying to sort this out, support having finally replied, so we'll see what we can sort out for the auto upload function and keep you posted.