Have you found it on your Roku? Settings, System, Control Other Devises and make sure “One Touch Play” is not ticked.

Just to make life easy CEC has many different names, it's called Viera Link on my Panasonic. If your RCA is running WebOS I believe it will be called Simplink. To turn it Off on the Roku look in Settings, System, it's somewhere in there and called One Touch Play.

Have you turned CEC off? If not the Roku will be turning the TV on using CEC and then when the X1 sends the Power signal to turn On it instead turns it Off. Or if your TV has separate On and Off buttons listed (some do even if the original remote does not have separate buttons) change the X1's Power Settings to use ON rather than POWER and the TV will stay On.

For info it's not "new" it's been there a long time. Having looked this morning the word Beta is no longer there.

In "Me" on the app select Remote Firmware then tap either the top of the screen or V11 (not at home at the moment so can't check) multiple times, V12 will then appear.

Never owned one but from reading it took Harmony many years to produce a good remote and 20 odd years later they’re still not perfect.

My connection is now perfect but I am aware some people have problems. I did have an issue when I placed the hub close to a speaker and in a Wi-Fi black spot in my room, also after a power cut I have to re-pair my Roku. So my thoughts are that peoples issues are down to the local environment and not down to software in the hub. This is probably the main reason for the X1s as it has hardware changes for communications, “wake on lift” and a new font being the only other changes I can see. The X1(s) and U2 are advertised as Universal AV remotes not Home Automation remotes (go and spend £700 if you want that) so Hue in any form should be considered a bonus, personally I don’t use it (I did buy a couple but sent them back as I am not upgrading my phone just for their app). You do have a point about it lighting up randomly.

Why exactly do they need to keep rushing out updates? With the last update they introduced the last feature I wanted so my X1 is now working how I want it to. Constantly changing things just for the sake of it risks introducing bugs. API, which I don’t think I will personally use, is the only thing I can think of or am I missing something?

What Sofabaton did not say in their answer is you do not need to turn 5ghz off. I have both and most of my kit uses 5ghz, leave it on, just don’t connect to it when setting up the Sofabaton.

If its out of warranty get some Electrical Cleaner (its nonconductive so don't just use any old cleaner) quick squirt down the gap and all will be well again, works on my X1 so no reason it won't on the U2.