Before I call anything a bug, I want to make sure it's not user error. In the ME, I placed the Stennis, edited the TACAN from "1" to "74", on X. Start on the ramp, cold. Fire everything up, wait for the INS, switch to NAV. Set the TACAN on the UFC via TCN, On, CLR, 7, 4, Ent. Select TCN on the HSI. I get an indication in the HSI, cannot edit a course, and while the carrier is traveling east at 27 knots, it seems the TACAN beacon is remaining at the initial starting point. Also, if I go to the DATA page from the HSI, then check TACAN info, it shows 1x instead of 74x to which it was set in the ME. This is post todays update. If I'm doing it wrong, I'm ok with that, but what am I doing wrong?