I can’t print labels either, though it worked fine the other day.
I’m also seeing a “Connect Jetpack to activate WooCommerce Shipping & Tax” banner and prompt to “Activate Jetpack and connect” on the Order pages.
Though I have clicked through to Activate and been told “I’m all set.”, when I’m sent back to the site, I still can’t print labels and am still being asked to Connect and Activate…