It is not an Auctiva problem to my knowledge. I think the problem is with PayPal. It won't even import address for me on auctions that don't pay by PayPal. Even when I manually insert the address and can print the shipping label, I can't find a way to print a packing slip. Says something about no transaction id. I also have to re-choose my shipping service on about half of my sales even though it shows correctly on my invoices. My problems started about the same time as yours. My eBay preferences are set. I use a set shipping fee and not the calculate shipping. I'm sure they will fix it soon and find another problem for us to deal with. I keep plugging along. It beats the alternative. Smooth sailing is just a dream.
I love Auctiva! They put some fun into it and take some of the boredom out of listing.
My rant is against the new shipping from the USPS. They sure made it complicated. I was just getting brave enough to try International shipping but now I'll wait and see.
I've never heard of AuctionSound.