I updated Lightroom and Photoshop but since I did that
I can't get Lightroom to send photos to Photoshop to finish the editing? Help
LR CC 2015.7 / 6.7 introduced a bug with editing in Photoshop. To work around the bug, start Photoshop manually before you invoke the Edit In command.
See this bug report for another possible workaround: Lightroom 6.7: Opening photos in Photoshop from Lightroom using Edit In does not work correctly for some operations | Ph…