Hello everyone. Im from Russia and ssory for my english XD. I have Laptop ROG STRIX G513QM and after last update i had a problem with Aura Wallpaper (freeze after activate and close). I fix this and write my steps for you:
1. End "Aura Wallpaper Service" in Task Manager
2. Delete "Aura Wallpaper HTML" and "Aura Wallpaper Service" in Windows settings

3. Go to Content Center, click on Download Wallpaper and go to Update Center for Download Aura Wallpaper again


4. After download go to Task Manager and END "Aura Wallpaper Service"
5. Go to C:\Program Files\ASUS\Aura Wallpaper Service and run both exe files as administrator. If will appear error windows - just close.
6. Go to Armoury Crate - Content center - Aura Wallpaper - Click on your downloaded walpaper - Click Check Downloaded (the same actions in step 3)
7. If you see icons then everything is working. You can switch on Aura wallpapers, no freeze, all work
🙂 
Thanks fo read
🙂