Hello, @Qasim,
Thanks for using our theme and for contacting us.
1..No, the variations doesn’t show duplicate because as you can see all the variations are different from each other see image: https://postimg.cc/R3ZdJhCB
2.. The color issue is fixed now please check back to your site after clearing the browser cache. If you still see the color issue on the shop page variatitons then please let us know how does it look likes so that I will make it to solve your issue. Please explain with a screenshot.
Regards 8Themes Team.