Image occlusion: I cannot see the images on my notebook

I downloaded an anatomy set that I got from a friend. But on Anki i can’t see the images in the “image occlusion cards”, I only see the stickers that hide the solution. It works perfectly fine on my mobile phone, but on my notebook ia cannot see the images.
I have tried deleting the set and adding it again, but it did not solve the problem. My other friends have tried downloading the set too and it works perfectly fine.
Has anyone the solution to my problem?