Occurence: Chain signals turn blue after I place the center train stop. Trains pass the chain signals to reach the middle train stop and move to wait at the next (red) signal.

It seems like the chain signals don't copy 'red' if the next rail signal is beyond a train stop, only turn blue (if one or all are red) or green (if all are green).
Is this behavior intentional?
Mods in play:
Launch Control
P-Robo Charge Delay
I don't suspect the mods are playing any role, but those are the two I am using just in case it's relevant.
Found the issue on reddit first, admittedly:
https://www.reddit.com/r/factorio/comme ... n_signals/
