Do you have iCUE installed?
If so, have you updated the component ArmouryCrate.Aura to v18.104.22.168?
This update is for those with iCUE installed. Aura Sync could not work normally since Armoury Crate could not regain control of the lighting from iCUE.
2 actions can be taken to resolve this:
1. Toggle the "In-game lighting" (off then on again).
2. Install the component "Armoury Crate.Aura" to V22.214.171.124
I honestly don't know what fixed it but I used the uninstall tool and install tool about 5 times until it finally installed correctly. Also I installed the standalone AURA Sync program and restarted. After doing those things Armoury Crate is back to normal functionality.
I do use iCUE for my mouse and keyboard. I deleted all the ASUS plugins in the iCUE folder so it shouldn't conflict.