Can't pass "Integrate with GitLab" stage of "Build an automated pipeline with GitLab" trailhead project
I'm trying to work through the "Build an automated pipeline with GitLab" trailhead project. I've tried twice now, and both times everything seemed great until I went to verify at the end of the "Integrate with GitLab" stage. Verification fails and I just see the following message: "We could not confirm that you authenticated to your Dev Hub org using JWT-based auth flow with the 'DreamHouse_demo' Connected App".
I believe I have followed all the steps exactly as described. I've noticed there are some inconsistencies in capitalization between the instructions and the associated screenshots, but I believe I've been consistent. I also read the description of the JWT-based authentication flow here: https://developer.salesforce.com/docs/atlas.en-us.sfdx_dev.meta/sfdx_dev/sfdx_dev_auth_jwt_flow.htm and I seem to be conforming to the provided description.
I'm a little lost at this point. From the description, I assume this has nothing to do with anything on GitLab, but is an indication that I must have missed something while configuring my Dev Hub org or the connected app. Can anyone think of anything important that may have been omitted from the trailhead instructions? Or if not, any ideas what I might try next?
I believe I followed all the steps exactly, creation of certificates, encryption, sfdx command.
I thought that by getting that success message meant everything went ok.
Passed in a few days. Run this once and try again.
a, b, c, d.....
sfdx force:auth:logout --all --noprompt