Hello,

1. This is the way the background cover works. If you want to have the image as it is on mobile, add this code to the Theme Settings > Custom CSS > Mobile /Tablet /

div.woodmart-slide {
	background-size: contain;
}
div#slider-49 .woodmart-slide {
    min-height: 62vw;
}

2. The problem is caused by the font. It seems that the font does not support it. Try another font.

Best Regards