Hello, Across Users, Last week there was Korean Thanksgiving Day in Korea which is one of the two greatest holidays of a year in Korea. So please understand this late announcement regarding macOS 10.14 Mojave issues including the Error Code 7 in Server Mode and the switch back problem by mouse dragging in Client Mode. As some users reported the problems in Mojave, the current version of Across does not work properly for both Server and Client mode. In fact, there is only one problem: Mojave added a new security mechanism to prevent an app from controlling another app without the user consent. That is, you are able to register an app explicitly as an exception in the allowed list from "System Preferences". However, in the current version of Mojave, registering our daemon (acrossd) in the exception list has no effect at all. I am suspecting that this may be a bug of Mojave and then have reported it as a bug to Apple. So we need to wait for the Apple's response to the bug report. In the mean time, we can use Across with some inconvenience. Unregister acrossd from running as a daemon (One-time setup) Run the following command in Terminal.app (/Applications/Utilities/Terminal.app) sudo launchctl unload -w /Library/LaunchDaemons/com.clixon.acrossd.plist Register Terminal.app in the exception list (One-time setup) Open "System Preferences" and go to "Security&Privacy" and "Privacy" tab. In the "Privacy Tab", choose "Accessibility" from the left-pane. Click on the lock icon on the bottom left corner and enter password. Click the "+" button and navigate to /Applications/Utilities and choose "Terminal". Run acrossd manually in Terminal.app (For each login time, or Mode Switch time: Server↔Client) Run the following commands in Terminal: sudo ls (To apply sudo for successive commands without entering password) sudo /usr/local/sbin/acrossd& (To run acrossd) exit (To close Terminal. Finally close Terminal by clicking the red close circle button on the top left corner) We will do our best to resolve this problem at the earliest. If you have any questions or other problems, please feel free to leave your issue. Thank you.