Tivo says rerun Guided Setup from Settings/Channels/Channel List?

In response to one of my guide error reports, Tivo sent me an email saying to rerun a "portion" of guided setup from the Settings/Channels/Channel List menu. I don't think this will do anything since TVGuide.com has the same errors as the Roamio.

What will running Guided Setup from this menu do? Does it just reset the channel list or is it rerunning the entire Guided Setup process?

Thanks,
BGC