The HD-2 of KBXX (KFNC simulcast) has disappeared this morning (6/18) though the HD-1 is still on, and all the other Radio One HD subchannels continue with normal programming. The 97.9 HD-2 had been on at a check a couple of days ago with KFNC.
KFNC itself was buried under KWTX at my NW Harris County location this morning, so unable to quickly discern whether they have dropped frequent references to 97.9 HD-2. Their website currently has nothing about the HD-2. Has that arrangement come to an end?