Okay things have gotten a little weird the measurement is completely incorrect it says I have under a TB of other data when I know I have around 5TBs and the individual disk listings on the side reflect that when you hover on them and it shows the disk stats so the part listing the individual disk has the data amounts right the pool is way off its hasn't completed its balancing yet so I'm anxiously waiting to see what will happen. It also seems it balances a lot but never moves any of the data I have a drive with 37.9GB free but the pool never moves anything off of it. to be fair my HDDs are pretty full except for the new disk I just added so maybe that is why?