I tried overwriting the value, however, my upload didn't reflect the value changes for any of the inventory accounts except for one.  Ive tried using their sample template, researching, breaking up my data (I only have 55 lines so shouldn't be an issue) and nothing works.  

This is my attempt to create beginning inventory balances and all of the balances show up as zero even though my upload template reflects the quantities on hand as well as the purchase price.