Beautiful design, many options, bit glitchy

Love the theme and the options but Customize is a bit glitchy – for instance I changed the header image from center center to left center and it is not changing. I worked on a variety of edits to the header to see which image would work and hours later it seems some of the customize edits i made were suddenly implemented, changing a lot of my edits. Would love to use this theme but worried about these glitches.