Sometimes there are situations where TV manufacturers have similar code sets. In those situations, you could have a remote with one code set controlling some things, but not others. That may be what's happening with your situation.
First, you do not need to re-pair the device. That will accomplish nothing.
My suggestion is to do exactly what you did. I thought through the steps that I would normally suggest in this situation, and you've already done those. You tried additional code sets for that brand, so I don't need to tell you how to do that.
Try again, from the beginning. Ensure you didn't accidentally skip a code set along the way. Everything you have done to this point looks to be exactly what to do. I'm simply suggesting to do it again. Just take care to ensure nothing was skipped.
DBDukes Roku Community Streaming Expert Note: I am not a Roku employee.
If this post solves your problem please help others find this answer and click "Accept as Solution."