Have you gone into Aurora Settings > Keyboard RGB > Logitech and turned it on?
Yes, and Logitech is selected as the vendor. I also have allow games and apps to control illumination checked in G HUB.
I had the exact issue with my G910 as well. I believe it was an issue with the G Hub software, and regardless of what settings I changed in Aurora or G Hub, it never fixed the issue. I tried updating the Logitech software, but that did nothing. Ultimately I was able to get it fixed by fully uninstalling G Hub, restarting my pc then reinstalling G Hub. Since then I have had no issues at all with the RGB lighting with Aurora.
Thanks, I'll give it a go.