File > New Folder · Now the new folder should be there. If it isn't, it is probably because the shortcut to the new folder was typed improperly. A simple solution to this problem appears in Troubleshooting Guide for the Mac OS X. Command+Delete Shortcut Isn't Working — Apple Community Jun 17, 2022. This isn't a bug, it's a feature of Mac OS X. When your folder is created it is automatically associated with a command key shortcut. If you delete or rename a file using the command, or it's shortcut, your folder may no longer have the same prefix. So this won't remove the shortcut, just the folder in question. The command or shortcut is still available, but it no longer has the prefix. This problem can be resolved with the following method: 1. Open System Preferences (if you can't run System Preferences directly from the Mac, you can use your normal Finder or an external one). 2.