Overflow hidden button glitch

Hey Webflowers,

I’ve implemented an animation for the background of a button. You can see the animation in the hero section and the footer section here: https://tropee.webflow.io/home-v2

So basically, it’s blurred colored circles that move inside the button.

The problem here is sometimes, we can see that the colored circles are kinda visible outside of the button, even if there’s an overflow hidden on my button. Here’s an exemple:

As you can see at the bottom right of the button, we can see one of the colors.

Thanks a lot for your help!

Here is my site Read-Only: https://preview.webflow.com/preview/tropee?utm_medium=preview_link&utm_source=designer&utm_content=tropee&preview=dae79c592f35771cf9389f4d69985dde&pageId=652e394cd901d37cd5c30cbe&workflow=preview