BTW, I don't know anything about the Smart-e matrix switch,
but it isn't at fault here in any way most likely. It
is your remote.
I need to ask loads of questions based on the responses but the first things that come to mind is how come it's none of this is the responsibility of the manufacturer of the video matrix and the harmony remotes.
Believe me, these are being advertised as the "best of bread". How come it's all my fault?
Trev