Submitting revision to extension results in 401

Developers Extension Warehouse for Developers
1

I tried upload for review a minor change to one of my extensions today, and I got a 401, and an unhelpful error message:

The following errors were found:

  • Request failed with status code 401

SeeExtension Development Best Practicesfor more details.

What’s up?

2

Tried again 3 hours later, and it worked this time.