Why aren't the metrics the same ?.

Hello,

I have a server that's flagged as critical and the hover over shows tempdb log file is 99.64% full.  When I go to TempDB and check the files, it only shows 2.15% full.  Why is this happening please?  https://ometv.onlhttps://chatroulette.tophttps://omegle.wtfhttps://bazoocam.cam

thanks

alexsunny