I've got my Aura set to use the Temperature setting while on and be "off" when the PC is powered down. I haven't seen any pattern yet but sometimes when I boot back up in the morning the settings have reverted to "Color Cycle" for both on and off states.
My motherboard's LEDs were not working at all so I used the Aura Firmware Reflash/Recovery tool (
https://rog.asus.com/forum/showthread.php?94418-Aura-firmware-reflash-recovery-tool) and it got them working again. I've had this issue before and now again after using the recovery tool, though.
Windows 10 x64
Bios 1501
Aura v1.05.22