Now that Upgrade 4 is out and about in large quantities we have now discovered a few SNAFUs that happen out in the scary, real world that is home computing. We've identified a few issues that have similar causes which we have clear instructions for work arounds here they are:
1. CMRT Windows customers need to re-license their original key. This is a result of improvements to the licensing system which CMBN, CMBS, and CMFB are already using. To do this launch CMRT with the Upgrade and the first time enter your Engine 4 key. Exit and then use the "Activate New Products" shortcut in your CMRT folder (or CMRT Documents folder for MacOS), then enter your Engine 3 license key. That should do the trick.
2. CMBN MacOS customers must re-license all previously purchased license keys using "Activate New Products" is inside the Documents folder. You have to go through the process for each of your CMBN license keys. There is no special order to follow.
3. For CMBS and CMFB customers, you need to use the Activate New Products shortcut and enter your Upgrade 4 key. If you launch the game and see a screen that says "LICENSE FAILURE: Base Game 4.0 is required." that is an indication you haven't yet gone through that procedure. Provided you had a properly functioning copy before installing the Upgrade, that should be all you need to do. If in the future you have to install from scratch on a new system you'll need to do the same procedure for both your original license key and your Upgrade 4.0 key.
4. There's always a weird one and here it is. A few Windows users are not getting "Activate New Products" shortcuts created during installation. Apparently anti-virus software is preventing the installer from doing its job. This might not be a problem right now, but it will prove to be an issue at some point in the future. The solution is to create your own shortcut using the following steps:
Disable your anti-virus software before you do anything. Go to your Desktop, right click on the Desktop itself, select NEW->SHORTCUT, use BROWSE to locate the CM EXE that you are trying to fix. The location is then written out. After it type in a single space and then paste this:
Click NEXT and give your new Shortcut a name (doesn't matter what). Confirm that and you're done. Double click on the new Shortcut and you should be prompted to license whatever it is you need to license.