I printed a label as I would normally do, the only difference from any other time was I combined 5 items under one label. The I printed the label after purchase but for some reason it is not scanning thru the USPS system. The shipping label is not valid. Would anyone have any experience with this issue?

USPS label printed thru ebay (multiple items combined) is showing as NOT valid | Ask a Mentor

USPS label printed thru ebay (multiple items combined) is showing as NOT valid | Ask a Mentor | eBay Community