Can't set primary edition

[Laura]

Added new editions for a three book series with new ISBNs. I could change primary edition to the new version on one out of three books. I get a "Sorry this book could not be set as the work's primary edition" message when I try.
Two books I could not change:
https://www.goodreads.com/book/show/5...
https://www.goodreads.com/book/show/5...

The book I could change:
https://www.goodreads.com/book/show/5...

Thanks!

[Scott]

I can't see any reason you'd only be able to change one of those. It could just be a site glitch and you can try again later. Otherwise you'll have to contact support as this is a site functionality issue.

[lethe]

Librarians can't help with setting the default. If it doesn't work for you, you will have to contact Support: https://www.goodreads.com/about/conta...