Gradient animation override on website

[egyleader]

I need to make night and day animation in 3 separate phases and when I animate the gradient radial fill in 2 or more animation it keep override the gradient in the other 2 animations .. even when I separated the animations to different art boards it keep changing I think it is a bug not a mistake ..

my animation link for reference :
https://rive.app/a/ahmedos/files/flare/night-and-day