Why,sometimes, when i go to select a track that it controls, does it say N/A next to the track number?
the signal follower can only control tracks which are next to the one where the signal follower is
Actually, only to tracks that come AFTER the one with the signal follower, from left to right.
thats why its called : follower
no, but seriously… 
To follow signals backwards, you’d need a signal trailtracker 
in case you need, you can drag and drop tracks to meet the ordering requirements
Does anyone know why signal follower operates unidirectionally. Is it a programming constraint or is it to prevent signal “feedback loops”, if you catch my drift?
More specific:only effects after the signal follower and in the next tracks thereafter.