Issues with H6 Flow RGB: Lights not turning on!

Hey yall!

Recently committed the rookie mistake of breaking my old side panel, so my dad and I went ahead and switched my PC to a new case. The PC booted and worked completely well, but the RGB on the case fans/my AIO did not turn on. I believe both the case fans AND the AIO are plugged into the top "RGB Headers" of the MOBO, while the exhaust fan at the back is plugged into the generic addressable header at the bottom. IIRC, the AIO RGB is plugged into its own hub it came with, the fans are direct to the mobo.

My two questions is, firstly, why? Secondly, if I plan to add 2 more fans at the bottom to fill out the case, what would be the best way to go about that? Do I need 2 NZXT hubs? 1?

The build is using:

Motherboard: Asus Prime X570 PRO

AIO: Cooler Master ML240L V2

Case: NZXT H6 Flow