We're not concerned with FX1 freqs., but yes EDACS must have all freqs. that are in use and have them in the correct LCN order to track properly.
First thing to do is to hold/tune on the control channels to see if reception is a problem. At this moment the active CC's I can recieve are as follows.
Site 1 - LCN 5 - 858.2375
Site 2 - LCN 2 - 857.2625
Site 4 - LCN 3 - 858.9875
Site 11 - LCN 14 - 866.4375
If you can't hear any of those, or the other listed CC freqs. then you know you have a reception problem.
I was logging site 11 when it switched to that CC and had a noticeable drop in signal quality myself when it did. Not sure why but I'll guess other nearby freqs. may be causing a little bit of signal interference. Especially given the distance I'm at. It rolled to that CC around the 14th or 15th and has been on it ever since as far as I know. I monitored Site 11 most of the days that had Mardi Gras parades, especially the heavier parading days.