For most people having this issue, that won't fix it. I've completely uninstalled all three apps (including app preference files) and reinstalled them twice (once installing Publisher first, then another time last). I've tried opening Publisher first, and also last. All three apps are version 1.71 and all three are in the Applications folder. Nothing I do will get StudioLink to recognize the other two apps in Publisher. At this point, I've wasted enough time (along with the many other issues with Publisher) that it's no longer worth even trying to use them.