all good here, using UNVR and HA Core 2025.6.1.
Error suggests issue with SSL certificate. Is date on your HA installation correct? is certificate on your UNVR valid (probably self signed, but is it valid?)
@tmcgowan Did you ever figure out how to cause the UNVR to renews it’s id.ui.direct CERT? Mine just expired yesterday and now I’m having this same issue. Restarting the UNVR didn’t cause a new CERT to be issued.