I'm trying to synchronize a live site with a local copy of the same site. I have changed a lot on the live site. When comparing the locations, the synchronizer ("Sync With Local ...") finds about 1600 obsolete local files - I'd like to delete them. So I select them all, right click and in the popup menu select "Set Delete". Now there are three ways to start the process: the buttons "Synchronize selected" and "Synchronize All", and simply pressing Enter. When I do any of these, either only a single file will be deleted, or all files in a folder. (In spite of the warning popup asking: "Do you really want to delete 1654 files?")
To really delete all files, I must use one of the action options hundreds of times. No go. Sometimes, though, when doing the same thing, it will actually delete all files in one go. But I have not yet found out when it works and when it doesn't. It is also extremely slow, like 1 deletion per second or less. Like that, it takes more than half an hour before all of the obsolete files are deleted.
What's wrong? Any better way to get rid of obsolete files?