[quote="Mipey":256smplx]Which layer are they on? Might want to create them on the initial layer. If the new layout doesn't have the extra layer, then it might not pick the global objects up... just a hunch.[/quote:256smplx]
That shouldn't matter as far as Mouse & Keyboard are concerned, it's a Non-Layout object.
I just ran a quick test, creating a M&K object in layout 1, marking it global, and making several new layouts and extra event sheets, and it shows up in all of them. So I don't know what's going on.