Replacing resized components

Hey there. I have an existing library of company icons. They are all around 94 pixels big. Now when I move one into a new component that is resized to 35 pixels tall and then try and change it to another icon the new icon doesn’t resize… why is that? I have created the icons with autolayout and have tried playing with hug/ fill properties and I just can’t figure it out.
I have also checked and this resize only happens when the icon components are within another component, can you not do this?
Attached an image to show what I mean. Thanks for any help