Image Fill in Component Variant gets lost in Component Instance

Hi there!
I have built an Avatar component with variants where there is a user image (Ellipse with Fill image) or just the users initials as text. Now if I create an instance of the component in another file and switch to the variant with the image, the fill is lost and the Ellipse is empty.

Does anyone have a solution to this? Thank you in advance! :smiley:
Charlotte