Can't save a deck to dueling book

[johnbraddy]

Hello,
I'm trying to make a deck. However, whenever attempt to save, it gets stuck in an infinite loading screen. I've tried saving it periodically so it doesn't go unsaved for too long but even if I immediately save it I encounter this problem

[Cromat]

If you can't save the deck, then don't save it. You've never logged into the site in your life already.