Unable to submit UPC code

When I enter UPC code into the barcode field I am getting a Warning. I can ignore it and list my products without UPC codes and the product then appears with UPC codes. But why am I getting a warning?

Hi,

this i the same issue encountered in this thread:

Please try out the link to the prerelease in the last posting. And report back whether this resolves your issue.

Thanks,
Mathis