I have been experiencing the same issue for the last week to 10 days. I saw this thread and have been patiently standing by. However, my scheduled recordings are all failing because I have the recordings set to only record new. It would appear this setting typically only records new shows on the channel for which the original program was selected - which is exactly how it should be. After re-scanning and getting the incorrect labels, my scheduled recordings are failing because they are attached to channels that no longer exist (the ones with the old, correct labels).
For example, in the Scheduled section of the Tablo App, my CBS 5.1 scheduled shows indicate multiple new episodes upcoming and have the red 'REC' icon showing the episode is scheduled to record. However, those shows are not recording because CBS is NOW labeled as JSTNW 5.1. These means, I have to change ALL of my existing shows to the new INCORRECTLY labeled channels for the shows to record. This is quite cumbersome not only to make a change to all existing shows scheduled to record, but also because when the issue is corrected the schedules will need to be updated again. Thankfully, it is the holiday season which means many shows are repeats.
A timeline for when the new firmware will be made available would be greatly appreciated.