I ran into problems printing the barcodes too. I'm using a Mac on high sierra. Preview didn't work, chrome didn't work but luckily Firefox did work. 

 

So if you're having problems try using firefox or Adobe reader.

dgbint
Community Member

Had the same problem.
SOLVED !!

My buyer had a bad address.
In my case he had mis-spelled the suburb, so the automated eBay / Sendle interface bounced it.

I went and edited the 'ship to' address, and it went through A-OK.

I'm sure the OP is ecstatic to get this information (also posted on many more recent threads) TWO YEARS after they asked the question.