Layer shifting after color change only on first layer

I’m using fusion to make a small object with 2 colors/ 2 two bodies. I export both objects to a 3mf file and open on the bambu studio. I change the color of the objects and select a standard profile. When the printer starts to print the second color, the aliment of the first layer is always wrong. I have tried other objects and the problem remains. This only occurs on the first layer.

The problem is the same on this post:

I’m having the same issue on my A1 mini. It only happens if I color change on the first layer. Other prints with color change higher up in model has no issues. Anyone find a solution yet?