"You must run the f.lux app to set your location."
I've just installed f.lux for the first time on my iPad 4 running iOS 8.1.2. It seems to work okay apart from the sunrise / sunset times are wrong. In the f.lux settings it says "NEW: YOU MUST RUN THE F.LUX APP TO SET YOUR LOCATION."
I have checked and there is no f.lux app installed on my iPad. I tried reinstalling f.lux several times and still nothing. There is no location setting on the f.lux settings page.
Is there no way f.lux can get the current time zone from the iPad? Or use location settings? Even a manual setting for sunrise/sunset would be good.
Thanks in advance,
I removed the Cydia tweak FastLoading which refreshes UI cache, and is known to make icons disapear. This has fixed the issue.