Because which ICP account belongs to a given neuron is not public information. You need to be the controller or you need to be one of the configured hotkeys of the neuron to be able to see it.
@timo Thank you for all the answers!! Really, it is extremely helpful 
I will try dissolve my first of the 49 neurons, to see what comes out.
Great. Is there documentation on this, or will that only be available one Ledger company pushes the update?
I’ve noticed they’ve been slow over the past month during the holidays pushing all updates.
Now when I access one of my neurons, I can see Locked time, Amount staked, Voting power and Maturity.
As I understand, my current reward is equal to the Maturity times the staked amount. Is that correct?