I say "new", but it's been quite a while for some of them... anyway, they all mirror the contents of ATSC 1 channels that have full data in Channels, but the ATSC 3 versions have none. In my area, so far, these are:
And to answer the question posed here: Missing Guide Data for OTA Channels , they all do have data in the HDHR app, except for 158.3 (which is just a duplicate of 158.1).
Additionally, the ATSC 3 shuffle also led to the creation of a new ATSC 1 channel, 54.11, which is just a duplicate of 54.1 (WNUV), and has no guide data in either the HDHR app or Channels.
Finally, there's another ATSC 1 channel with no data, 25.1 WDVM-SD, which does have data in the HDHR app.