Channels 2-1 and 44-1 gone again in my part of Brooklne

[Larry Sochrin]

Several weeks ago, the audio and video for the HD versions of WGBH and WGBX suddenly showed up after being gone since the Repack.  This morning, they both are gone again.  As before, they are on RF 5, and there is a digital signal indicated but no picture or sound at all.  (And a friend in South Brookline finally has them both.)  Anyone have any idea if they’ve been changing anything again?  Thanks.