Linked staff isn't really linked

I have a guitar part with a linked tab staff underneath.
At least, it says they're linked under Edit -> Instruments.
Except when I modify the notes either in the five line regular staff (for instance, change A to A sharp) or modify the tab fret number, nothing changes in the corresponding linked staff, meaning these staves aren't really linked.
Now if I take a note and add an articulation, like an accent, the articulation appears in the other staff. So in this case the staves are linked! What gives? Any help would be appreciated because this is frustrating!