So, I went a completely different route and tried to use "image" blocks with "display caption on hover" and CSS to achieve the same effect. As the basis, I used my "Dark Bold" page color setting and then developed the following for my CSS:
//IMAGES NO BORDER//
.dark-bold.page-section {padding: 0 !important; width: 100% !important; overflow: hidden !important}
.dark-bold.page-section > .content-wrapper {display: contents !important}
.dark-bold.page-section .sqs-block-image {margin: 0 !important; padding: 0 !important; border: 0px !important}
//END IMAGES NO BORDER//
Below (and, attached) was the end result.
Maybe this will help you in what you're trying to achieve!
