Why can multiple A-RGB programs cause problems?

ARCTIC uses the common standard for the A-RGB signal. Multiple A-RGB applications such as Corsair iCUE, NZXT CAM, Logitech G Hub, Razer Synapse, ASUS Armoury Crate, or MSI Mystic Light can access the motherboard A-RGB header simultaneously and cause conflicts. If possible, use only one RGB control software.