Mine is the RCA 70" Scenium Model SRCUS7040. Bought in January of 2019. Have had Rogers Ignite the same amount of time with no issues.
Just this morning.
I checked "Settings > About" and I'm still running Release 109.0.1 (dated 02/14/20) on my Xi6-T. I would ask you to do the same but that seems rather pointless at the moment.
Is it possible that your TV updated its firmware and that's when things broke?
mm1k, I don't have the financial means to do what you did. And really, it is Rogers who messed up. Not me. I will be going after them for another TV, on their dime. On Friday, Rogers said my problem would be fixed by end of the week, Sunday. So far it hasn't been fixed.