A-RGB Headers on MSI Mag x870 not working

I have a brand new build with 9800X3D, MSI Mag x870 and G.SKill RAM, with an Arctic Liquid Freezer III A-RGB Cooler.

My RAM rgb works, as does my Logitech Keyboard and Corsair Mouse, but the AIO is stuck on the default rainbow and I can’t change it. I have no other RGB software running, and dynamic lighting is disabled in Windows. I’ve tried all 3 5V RGB headers on the motherboard and nothing works. I’m really trying to avoid having to RMA anything right now as I use my PC for work and am super busy at the moment. My place of purchase doesn’t even know if it’s motherboard or cooler related so I basically have to pull everything apart and wait approx 2 weeks for them to work out what is\isn’t faulty.

I’m having the same problem with my new build with a MSI Mag X870 Motherboard, Ram works but nothing else. Did you find the solution?

I haven’t yet, but I brought a Nollie argb controller off Aliexpress I’m going to try.