Hey everyone!

I am not new to figma, but I noticed something that I didnt notice before and I dont know if its a bug, something that I am doing wrong or even something that always happened but I didnt knew of it.

So, I am doing a game and I have hovers on books. I did a component with a book and a variation of it with a aura around. Both variations are exactly in the same spot. 
In the presentation mode, if I select “Actual size (100%)” everything is perfect. But if I select “Fit width and height” the hovers move slightly. 
Is this normal? If I past this to the devs will work right? Or I am doing something wrong?

Thank you so much!