Installing Update... Grrrrr

So I'm watching something via Plex on one of my Minis and the picture freezes and no access to anything. I check my Roamio and the screen says, "Installing an Update This will take a few minutes."

I realize it's a rare occurance, but still I thought the TiVo wouldn't reboot if I was using it. Granted I was only using it via MoCA to my Plex server, but it's really annoying.

Thanks for listening.

ETA: Now it says it is "Preparing the update. This may take up to an hour." Double Grrrrr!