Color temperature issue while watching videos

Sans96

** Issue : ** While watching videos with f.lux on, artifacts appear on the screen when the trackpad is not being used.

I checked the same while turning f.lux turned off, but there seems to be an issue with f.lux
Whenever you don't move your cursor, like in a case of watching any video online/offline artifacts like colours appear almost suddenly. i.e white colors turn purplish, etc
This only happens when any app is in fullscreen while f.lux is enabled in night mode. I am not sure about day time but I am 100% definite about night time.

Steps to reproduce the issue :-

Use f.lux at night mode
Play any video at fullscreen and let your cursor fade away like it does naturally
You will see color issues in the video similar to the effect of artifacting
When you move your cursor, the colours are back to normal
After the cursor fades away again the issue returns back.

MacBook Pro (Retina, 13-inch, Early 2015)
Processor Name: Intel Core i5
Processor Speed: 2.7 GHz
Graphics : Intel Iris Graphics 6100 1536 MB