Hello @tneal,
Thanks for writing in!
There is an on going JS error on the page which is why your Masonry layout is not properly displaying. Please go to Cornerstone > Theme Options > JS and insert this line:
if (window.jQuery.xIsotope) window.jQuery.xIsotope.settings.animationEngine = 'css';
And to get your issue, removing the Home and Blog links in your archive page breadcrumb, please refer to this old thread:
Based on that thread, you can reuse the given code and modify it for your own site. Using your browser’s Development Tool, you can check the live HTML code and find which CSS selector you need to use or what CSS code has been used to style the page.
Check out this video demonstration:

Dev Tools demo
.archive .x-breadcrumbs > span:nth-child(1),
.archive .x-breadcrumbs > span:nth-child(2) {
display: none;
}
The code above serves as an example code. Feel free to modify it when needed. Please note that custom coding is beyond the scope of our support. You will have to maintain any custom coding to make sure that it will still work after any updates or does not create any issues or incompatibility in the future.
Hope this helps.