Track Remover Carts are able to break Force Rails and drop them as items. The dropped Force Rails cannot be used for anything, as they disappear as soon as they encounter a block update.

So this is the bug of the drop of the track. And CJ had better prevent the trade focus of the wand in Thaumcraft to move the Force Track.

As far as I'm aware, the wand can't interact with Tile Entities anyway.

Maybe you should make it more similar to hiddenblock. It just need to act like grass(not block) to be replaced.