For those of you with issues right-clicking with the client, you may need to have your Java version re-assigned. Make sure you have the latest version of java installed https://www.java.com/download/ Download and launch this application http://johann.loefflmann.net/downloads/jarfix.exe The executable file has been verified to be safe. If you're still having client issues, try out our general fixes guide:  (Adding in the Mac guide below this) Original: https://spawnpk.net/forums/index.php?/topic/10196-right-click-not-working-other-client-issues-fix-for-mac/ Step 1. Go to the "Finder" on your dock. Step 2. In the search bar type "Utilities" and scroll down until you find the utilities folder, open it. Step 3. In another window open /Library/Java/JavaVirtualMachines/  find what version of JDK you have. If it is over JDK9.(something) this is your issue. Step 4. Go to the first window with your version of JDK in mind and open your terminal, entering the following commands: sudo rm -fr /Library/Java/JavaVirtualMachines/JDK_FOLDER_NAME_HERE sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin sudo rm -fr /Library/PreferencePanes/JavaControlPanel.prefPane Make sure that in the first line you replace "JDK_FOLDER_NAME_HERE" with the name of the folder(s) that are higher than JDK version 8 Step 5. Go here... http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html and download Java SE Development Kit 8u161 for macOSX. Step 6. Finish the install, reboot the client and presto, all your problems are solved.  Credit to Blu Claws for the Mac guide.