QR Shipping codes aren't working again!

[hardygirl66]

I got to the PO to ship 2 packages, and neither QR code worked. Unable to print. Has anyone else had this problem? Ebay says my items shipped b/c I bought the label, but it doesn't work.

[albertabrightalberta]

There are several threads: 

https://community.ebay.com/t5/forums/searchpage/tab/message?q=QR%20codes&sort_by=-topicPostDate&coll...

[chevymontecarlo88]

There does seem to be an issue from others. I just used one on the 11th of this month with no issue. YMMV

[mittenkeepsakes]

Yes same issue for me today! 
The shipping labels I purchased yesterday scanned just fine today at the USPS but the one I purchased this morning did not.