I had the same problem (missing CPU usage meter) until I discovered why. If the main window, that is the main program window is reduced in size and repositioned in certain ways, a lot of the GUI goes off the screen on the right side. This is different than in previous versions (2013 and before). Personally, I don't like this. We've lost the ability to set things up in custom ways. Hopefully a new build will restore the ability to delete superfluous icons and enable the resizing/repositioning of the main window without the disappearance of wanted information.

Check to see if your main window is set to full size, then look for the CPU usage meter again.

Don