Split Macintosh HD into 3
Thanks to @tubedogg for linking me to this post and giving me the tips.

To fix the issue I had to run the commands diskutil cs revert &lt;disk id&gt; and diskutil cs resizeStack (Not sure if that worked since I think it game me an error).

I had to reboot for the effects to change and I partitioned my drive in recovery mode (think you can do it within OS X though).