I dont think thats the case. We're not seeing any other reports of missing channels.
If we knew what frequency was missing channels, I'd probably suggest capturing 20 seconds or so of the full transport stream, and put it somewhere I could download it, and I'd check. Probably the easiest way to capture the full transport stream is using the utility from tscapture.com (also written by me). Unlicensed versions let you capture up to 60 seconds.