Ok, that is interesting. One more check, for each TomTom and HERE, could you go under About->Content and tell me if you see
"Junction View" and/or "Junction View NG" Make sure you click on each to see if they are not red*
My gut feeling tell me TomTom has basic junction view data as part of the map and HERE is using better junction view from .fjw

* red indicate invalid license and not used