I cant even use it. Freezing and slow processing and wont quit properly. Its unusable. I upgraded to work on images from the new Sony a7rII but i cant tell if those images are causing the problem or if its just buggy for everyone. Help!
There are others user's as well who are facing some issues.
So I would suggest you to please revert to the version Lightroom 6.1.1
Please have a look at the article : Instructions to roll back to a prior update version