Chemical smell from Kroger chocolate: Private selection 62@ cacao

I typically buy Giradelli bitter sweet chocolate chips. They were on sale at Kroger this week, but all the bags of bitter sweet chocolate chips were gone. I waited at the customer service counter too long (gave up waiting for a couple of rain-checks) and opted to purchase some Private selection chocolate instead.  Not a good choice.  Aside from unappealing appearance (the white coloration from cooling toprivate_selection_62%_cacaoo rapidly? or storing in freezing temps? whatever), too big a portion for a chip (bigger than the Giradelli), and an ugly shape….  after opening the bag and putting it in my storage container… when I opened the container the chips had offgassed a chemical smell.  Anyone out there know what this is.