I just upgraded from v2.5 (which worked well) to v2.7.2. I also upgraded Vara HF to v4.5.0. Now when I try to select a frequency, it immediately goes back to zero. Each time I try, the VarAc Log shows "OmniRig: Change Frequency" for each attempt, but nothing changes. The sound card is set properly (Signalink) and when I send a beacon, the rig transmits. Not sure if this is a bug, something with my computer, or something I did wrong. Please help.