My Lightroom CC (2015) won't connect to Photoshop CC (2015) to allow me to "edit in." All of the photoshop options are greyed out in the Lightroom menu.
I've deleted the Photoshop plist (a solution I found in an older forum), but the did not work. I have also uninstalled Photoshop, and Lightroom.
Running: Mac, El Capitan 10.11.1
Please follow the below article related to Edit In Issue.
Else, please check that images should not be missing from the Library. You can relocate the images in Lightroom. refer: Adobe Photoshop Lightroom Help | Locate missing photos
Let us know if that helps.