Copy/Paste Settings not working.

Hi, I just updated to Version 4.0 and when I go to paste settings to multiple images, the "Paste Setting" progress bar up the top freezes before completion and then I can't copy and paste anything else. Have to restart Lightroom, but then it happens again. Copying to a single image seems to work most of the time, but multiple images tends to freeze. Never had this issue before. Happened immediately after the update.

Thanks.

Daniel.