It seems Adobe has changed some underlying controls in the Photoshop protocol with the 2018 update.
For the time being we recommend uninstalling Photoshop 2018 and going back to 2017.
Here is a link with instructions for installing a previous version of any Creative Cloud application.
http://blogs.adobe.com/kevinmonahan/2014/01/29/revert-to-a-previous-version-of-premiere-pro-cc-or-any-creative-cloud-application/