My board it Rampage Vi Extreme(R6E), running 7900X and Windows 10 x64 OS.
Here's what I figured out when LiveDash app doesn't change the OLED Display when I click on Apply button.
Setup 1: Latest LiveDash (1.05.03) + Latest Armoury Crate & AURA Creator(v184.108.40.206) Result: AURA Addressable LED / Motherboard LED control works. LiveDash doesn't works.
Setup 2: Old version of LiveDash (1.00.06) + Latest Armoury Crate & AURA Creator(v220.127.116.11) Continuing with Setup 1, I uninstalled Latest LiveDash and installed the old version of LiveDash (1.00.06). I figured out the OLED Display works!!! BUT: I found AURA ALED / Motherboard LED doesn't sync with the AURA app. Then I checked update center in Armoury Crate app. It said the AURA Service is not the latest version. I updated it to the latest version. Then LiveDash didin't work again.
So is it an conclusion like: the Latest LiveDash (1.05.03) is not compatible with the latest AURA Creator, or more specifically, the Latest AURA Service.
The LiveDash installation package includes a [LightingService] folder. Inside, it's the [AuraServiceSetup.exe] file. If I uninstall AURA Service that comes with AURA Creator and install this file, LiveDash works and then AURA Creator won't work.
So now it's confirmed that AURA Creator / LiveDash use different versions of AURA Service.