While using flux on my macOS I also felt the same issue. I felt the issue in flux and iTunes together in my case. I thought it was because of iTunes sync error 54. After fixing that I got to know it was a system error. To fix the flux issue click start > type control panel > control panel > programas and features > select flux > update it

@oschlag Ah, sorry for making this duplicate thread then! Thanks for the link.

Same developers, different code. This should be better in the next update.

Which operating system version are you using and installing?

@Tungsten_smooth Thanks a lot. That did the trick!