margin-right on previous slider element preventing active one to stay full width

[randomgx]

Hi! I'm having an issue with my mobile breakpoint. As you can see there's a gap between the end of the previous slider and the active one, and I think that's controlled by margin-right, which in code, is gap. Even tho I set it to 0px, the margin still appears and that prevents the active one to be 100% width. Does anyone know how to fix it?

Idle, that's the slider when the page loads

Moving slightly to the left you can see that the end of the gap is the start of the previus slider.

If I set my margin, IE, to -33px, shifting the previus slider to the left outside the page, it displays correctly.

That's my config

Thanks!