Apple introduced Mission Control when they released Mac OS X Lion. The feature combines Spaces and Expose, and it allows you to see all your open programs on a single screen. Mission Control also helps you to set up spaces so that you can run multiple desktops. This feature was enhanced in Mojave.
For most users, upgrading to Mojave is a no-brainer. But as with many new programs, macOS Mojave is not free from bugs, glitches, and all kinds of compatibility issues. One of the known Mojave problems is that Mission Control is not functioning properly, leaving many Mojave enthusiasts disappointed. Some folks have reported running into trouble while trying to launch Mission Control in Hot Corners.
What to do if Mission Control is not working
While Mission Control works in Mojave most of the time, there may be an odd occurrence when the view for all windows may get stuck; it appears as if there is no application that is running. In most cases, the Expose view will cover everything, and sometimes, it may prevent you from using your mouse and keyboard to interact with these apps. Thankfully, the consequences of the Mojave Mission Control problem are not severe, and they rarely kill your applications or damage the game state. So what can you do if your Mission Control is not working in Mojave?
For most people, the first solution that comes to mind when they encounter this problem is to restart their Mac. While this strategy may work, there is a relatively easy way to resolve the problem without terminating your workflow. You can resolve the Mojave Mission Control problem by trying the following fixes:
Fix 1: Activate Mission Control
Pressing F3 should launch Exposè/Mission Control, but sometimes nothing happens when you hit this key. To rectify this issue, activate Mission Control.
By default, Mojave turns off Mission Control. So if you just updated to Mojave and you cannot access your Hot Corner or your windows just disappear, then you can go to System Preferences to activate Mission Control. Once you’re in System Preferences, select Mission Control, and then ensure the Dashboard feature is changed from ‘Off’ to ‘As Space’.
Fix 2: Restart Mission Control
When Mission Control is not functioning properly in Mojave, you can restart the feature without necessarily rebooting the entire Mac. You can accomplish this task by killing the Dock, where Mission Control is a child process. There are two major ways to kill the Dock: using the Terminal and using Activity Monitor.
The Command Line Method
The command line option is ideal if you are comfortable working with the Terminal app. Here is the process:
- To open the Terminal, go to Applications > Utilities.
- After that, type this command: killall Dock.
- From here, the Dock and all sub-processes, which include Mission Control, will automatically restart.
The GUI Method
Alternatively, you can achieve the same outcome by using the Activity Monitor option. Mac users who prefer working within the GUI will find this option handy. Here is how the process goes:
- Press the Command + Space shortcut on the keyboard to launch Spotlight. After that, type: Activity Monitor.
- When the Activity Monitor window opens, look for the search box in the upper right corner, then type ‘Dock’.
- Select the processes you want to restart, and then hit the Quit Process button. Wait for a confirmation dialogue box to appear, and then select Force Quit.
- Like in the previous method (command line method), the Mission Control and other Dock processes will automatically restart themselves.
Irrespective of the method you use, restarting Mission Control is a great troubleshooting tip if you have problems working with Mission Control in Mojave or if you encounter other buggy behaviors within Mission Control.
Fix 3: Restart Your Mac
The above solutions should work in most cases, but there are times when it becomes difficult to resolve the issue through a trivial workaround. Sometimes, you may launch the Terminal app, but you cannot type anything because the keyboard input may be stuck. So, if your GUI is so stuck that you cannot even click the Dock icon or launch the Terminal app, the only viable option to resolve the issue is to shut down your Mac and restart it.
What Else Can You Try?
Maybe the cause of your problem is not Mission Control. For instance, if your Mac hangs while playing a certain game and, in the process, prevents you from using Mission Control, probably that game has compatibility issues with Mojave. For this reason, you need to clean and tune your Mac for peak performance.
One way or the other, it is a good idea to perform basic health checks of your Mac. Redundant support files, logs generated by your apps, app leftovers, system logs, and obsolete cache files can slow down your Mac. Outbyte MacRepair is a great app that can scan your system and clear all sort of junk off your Mac.
While Mission Control may not work in Mojave for whatever reason, it is still straightforward to resolve the problem. We hope the above tips helped you to resolve the issue. If you have other interesting tips on how to fix Mission Control in Mojave, please share them with us.