Hello,
Thanks for reaching out! Can you possibly send a screenshot of the exact difference you are referring to? It might be helpful to send a screenshot of the button group from your dashboard as well, since we see different buttons on different pages and on desktop/mobile they're different too in some cases. It doesn't seem like the Button settings are the same after all since there are entirely different buttons when we look, though you may have been doing some additional tinkering since you messaged in (so that now we are looking at entirely different buttons/groups, but they were the same when you first asked).
In general we did notice you might want to check your menu button settings and adjust them. We see 95px being used, which is too large for mobile... and when adjusting it ourselves to 35px or so, it looks better.
Please send some more details and screenshots if you are still having trouble. Cheers!