I have been having this issue since December.  Every time I call QB's support, it is a challenge finding someone that actually understands what quickbooks is, and then when you do get in touch with someone that has some background, we spend hours for them to tell me I need to talk to someone else.  I have 85K items to import into our inventory.  The add/multiple through hosting is a joke when you have 85K items.  What is the solution????  6 months now and it still hasn't been fixed.