Oh boy, you're all dancing around the most obvious answer that came to me the moment I read the first post, Alice is not on the same frequency as the other stations. There are numerous ways this can happen, too many for here when you being tech minded know them. I had a rig with 3 sections, HF, 2M, and 70cM all with a common TX MO that was slightly off frequency from the RX and digital readout. The higher it went in frequency the farther off it went, I received stations OK but one 2M SSB op told me I was transmitting some KHz up the band, FM is forgiving, AM is forgiving, SSB is not.