I partially have the same problem as you. I've noticed that at least 50% of my dreams don't include me as a character. The entire visual of the dream is a screen, usually of a video game or a forum I go to.
Anyway, those kinds of RCs aren't working for you because your dreams don't give them a chance. All you have to do is get a new RC; one that can be done all the time. A mental RC. It could be anything from a simple "Am I dreaming?" to "Is my body here with my consciousness?"
I have a feeling that kind of check may work for at least one person here (hopefully more) so I'm just saying it...