Trying to reach out to support through https://help.shopify.com/support/queue leaves me wit ha server error.
I get the exact same issue on three different devices, on several Chromium based browsers and Firefox, regular and incognito, in three entirely different countries from three entirely different people.
So I do not believe this is a local issue.
The error we get is:
Failed to load resource: the server responded with a status of 400 ()
Pretty-print
{“message”:“Unexpected Server Error”}