I noticed something similar, and received this note back from eBay last week:

"An attempt to remove the retired shipping services from the SYI form was made but could not be applied consistently and consequently caused issues with relisting, revising, Automation Rules, and Good Til' Sold and Cancelled listings. Because of this issues this update caused it was decided to reverse the changes until a complete solution could be put in place. "

They are now operating a patched-together system with the old and new running side by side and (as you would expect) this has caused its own problems. Perhaps your one is related too.

I've decided to take a break from listing anything new until they get it all sorted.

Wyvern