I'm playing Garry's Mod, a supported game according to Cortex, and i have put around 7 hours into it (I have 2,672.8 hours in GMod right now) since i got Cortex and it hasn't been tracking them. I leave Cortex open, nothing. I open GMod through Cortex, nothing. I've uninstalled and reinstalled Cortex but nothing has happened. Im running Windows 10 Home newest version. Images:

(Cortex)

(Steam)