Purchased Inventory Items before certain date not counted properly

I’ve been using Manager DE since last year but I’ve recently noticed a very strange bug.

When I create a Purchase Invoice with a date of 2014-04-01 or earlier, the purchased items are not counted in Inventory Items.

If I change the date to 2014-04-02 or later, all of the purchased items magically appear.

Is there a way to fix this?

What is your Start date set under Settings tab?

Thanks for the great tip! Would you guess that it was set to 2014-04-02?

Is there any harm in setting this to 2000-01-01? Is there ever any need to change this again?