SBT 1.0+ Resolvers no longer using Credentials?

this is related to the last question I posted on the subject:

SBT Publish to Visual Studio Team Services (Web) Packages Plugin Repo

At the time I wrote that I was running SBT 0.13.16, and was able to make everything work.

My team has attempted since then to upgrade to SBT 1.0.x, and while for a while it seemed to work, it turns out that was only thanks to the cached versions of our libraries in ivy.

Attempting a clean setup using the same technique that worked in SBT 0.13.16 results in no attempt to send authentication information to the servers (and thus, no library download and frustrated devs); verified with Fiddler.

PUBLISHING does work and seems to make proper use of the credentials, but DEPENDENCY RESOLUTION does not, any longer.

Any idea what I'm doing wrong, or how I can replicate the old behavior?

Thanks!

Apparently this was resolved at some point before sbt 1.1.6.