The first thing I spotted is that power supply for the right hand most 4017 is going through a resistor, it needs to be connected directly, and in the real world each of those chips needs a 0.1uF ceramic across the power and ground pins.
The first thing I spotted is that power supply for the right hand most 4017 is going through a resistor, it needs to be connected directly, and in the real world each of those chips needs a 0.1uF ceramic across the power and ground pins.