+ AA6YQ comments below
I think I found the problem. Based on your comment about the sub-band definition file I went and looked at it and found a gap
between 10136.0 and 10.139.0. I fixed that and now SC seems OK. Sorry for the "fire drill" but as usual with me it was "pilot
+ A gap in the sub-band definition for 30m would indeed explain the behavior you reported. I'm glad that you found it, Dale.