Thanks for reporting this! I'm adding a "Reset All" button in an update dropping in the next few days.
In the meantime, I tested your settings and the button shows up fine on my end so your laptop's screen scaling or aspect ratio is likely pushing it off-screen.
Try setting your Windows display scaling to 100% (or switching to a 16:9 / 16:10 resolution) to bring it back into view. You can also try pressing [Alt + Enter] to force fullscreen.