@electromek
You can make the channel numbers visible again by going over to the channel logo in the guide and pressing asterick (*) button on Roku Remote. Then select "Sort Channel List". Then select "By Channel Number".
As for missing updates when the Roku device is physically deprived of power. You can always perform a manual update check. Settings/System/Software Update/Check Now.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102