Early in the OS10 update, starting the day of the update, my Insignia RokuTV kept saying that LiveTV Pause was not Enabled when I turned the TV on in the morning. (could not Pause or Rewind) I found that by just removing the USB drive and reinserting it would then temporarily resolve issue. Occured about 5 or 6 more times during the next couple of weeks, but only upon turning the TV on. Each time I just removed USB drive and reinserted it. Seems to have settled down, I think it did it once last week. Of note, a couple of times I received the message of it being Disabled, I did nothing and the Pause/Rewind features worked fine.
Try just removing and reinserting. If unsuccessful, maybe try reformatting the USB drive.
Also, not sure if any of the OS10 update builds helped to resolve issue or if it just fixed itself for the most part. Try Settings..System...System Update...Check Now [Basically, do a manual update to ensure latest build]. My Insignia RokuTV is showing 10.0.0 build 4201 but yours may differ.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660x, Premiere+ 3921, Express 4k+ 3941