WP-OpenID with I-name (XRI)

Trying to login with one of my I-name’s (tried both =myid and https://xri.net/=myid) and it always just brings me back to the login screen (with a long, populated URL). Note that it does properly direct me to my I-name authentication page and allow login in both cases—it’s just that nothing is happening beyond that.

I also attempted to leave a test comment here with the same result (I tried both of the above cases in the URL field)—I end up at an unpopulated login page when I’m done.

I’m using a fresh install of 2.5 with openid version 2.1.8.

TIA!