Why can't I put a motion?

Hi, This is about voting, though not in roof context. Trust ok to ask.  The generally fair-minded SM says motions I have advanced can’t be used, and that voting on my motions anyway would need to be unanimous. Is that because I am not on the committee I wonder, or can anyone please advise the process for a forthcoming meeting for a motion, or more, from a mere owner? Hope that’s coherent.  Many thanks.