Please keep in mind that if you just edited your book and requested a new copy, you may receive a copy from inventory that was produced before the modifications. While KDP is a print-on-demand approach, a copy that is printed on demand and then canceled remains in inventory until sold. If you want to ensure that you don't have any copies sitting around waiting to be sent out, you should request that they be removed from inventory. In addition, if you request a new copy and it isn't available from inventory, then you will need to place another order for it. This process can repeat until you get a copy that has not been previously released. Finally, if you only requested an electronic copy, you will not receive one until your book is ready to be uploaded. This could take some time since the e-file must be generated first.