Yep. Just command-click the search tab for that file and choose "Repeat Search."

Automatic requeries are ended, and any requeries from older clients are probably ignored/filtered. Looks like the developers decided to improve searches and network health this way, and from the little I've seen, it looks better than before.

"Could not move to library" is more of a problem, and used to be far worse. All I can do is kill it and start the download again from the search list. If I'm lucky, it will sometimes continue from where it left off. If not, sigh, I just delete the file from the Library/Incomplete pane, and start again.

btw, keep checking for updates on the OSX versions--lots more changes to come I think.