It seems everything OK with your connections (all D and L are common and S are separate assigned to 3 outputs).
How are you powering your circuit? Do you use the 5V from the master board pin?
Maybe you need to use separate power supply for the +VLED (leaving the +5v for the driver chips only)
P - by the way, you can connect in chain up to 4 drivers (not only 3 as pictured here as example: https://simvim.com/tech_num.html
and use one output instead two for two parameters on one 7-8-digit display