another person had this issue, I think from the way they talked, it just eventually fixed itself. - Keep trying to sync up it being opened and the shop being open, or it closed and the shop closed - and eventually , sleep - save - quit, and reload, and see if it stops misbehaving.
I can't remember if I told him or if he did anything else than that - Find his post and reply to it, asking what he did to fix it if you're interesting in a better answer - I told him how odd and crazy it sounded and I've never personally had it so I don't know a good way to fix it.