Line snapping

I’m having a weird problem with line snapping, Ive got snap to objects on but it doesnt seem to do it when i use the line tool. If i draw the line, then drag an endpoint of the line it will snap to an object, but if I am just drawing the line it doesnt snap to objects. Is this normal, or is there somewthing wrong, I’ve checked in the options and none of them will fix it.