Button in nested mc needs to jump back to main timeline

so i have a main timeline and a nested one. the main timeline has a button named “how_btn” that plays the nested mc (named “how”). once i get into playing “how”, i have a button named “menu” that i want to bring the user back to the main timeline (where the “how” button is). this is how i scripted:

how_btn.onRelease = function () {
gotoAndStop(“how”);
}
menu_btn.onRelease = function () {
gotoAndStop(“nav”);
}

the how button script works, however the menu button does not. is this b/c it’s in a nested mc? i tried specifying the root, but that didn’t do it either.

any suggestions?