Hover scale effect stopped working

Site URL: https://corn-apricot-zn88.squarespace.com/staff-blog-test

I added a scale on hover effect to my personnel summary block. It worked absolutely fine until I looked at it today. I have not changed any CSS. 

Now the scaled up image bleeds outside of the box. It should not be visible between the images. Is there something I can add. (site PW is BA47)

I tried an override with "overflow: hidden" but it does nothing. 

This is the ENTIRE code for the hover effect and title overlays that is in the CSS. It is used on the personnel page and portfolio page. 

@sbg-6_title-font-color: #e86335;
@sbg-6_title-case: uppercase;
@sbg-6_title-letter-spacing: 0.1em;
@sbg-6_title-font-family: 'arial'!important;
@sbg-6_title-font-size: 20px;
@sbg-6_title-font-weight: normal;
@sbg-6_title-paddinng-vertical: 90%;
@sbg-6_link-font-family: 'arial'!important;
@sbg-6_link-font-size: 18px;
@sbg-6_link-case: varies;
@sbg-6_link-font-weight: normal;
@sbg-6_link-font-color: #000000;
@sbg-6_link-letter-spacing: 0.1em;
@sbg-6_excerpt-padding-vertical: 0;
@sbg-6_excerpt-padding-horizontal: 10%;
@sbg-6_excerpt-font-color: #000 !important;
@sbg-6_excerpt-font-family: 'arial'!important;
@sbg-6_excerpt-font-size: 14px!important;
@sbg-6_excerpt-font-weight: normal;
@sbg-6_excerpt-line-height: 1em;
@sbg-6_excerpt-case: none;
@sbg-6_clickthrough-option: auto;
@sbg-6-metadata-bg: rgb(234, 226, 234);
@sbg-6_metadata-padding-vertical: 10px;
@sbg-6_metadata-padding-horizontal: 30px;
@sbg-6-metadata-font-color: #fff;
@sbg-6-metadata-case: uppercase;
@sbg-6-metadata-letter-spacing: 0.1em;
@sbg-6-metadata-font-weight: bold;
@sbg-6_hover-time-overlay: 1s;
@sbg-6_hover-time-content: 0.7s;
@sbg-6_hover-time-image: 0.5s;
@sbg-6_hover-scale: 1.2; 
@sbg-6_hover-overlay-bg: rgba(255, 255, 255, 0.7);
@sbg-6_mobile-excerpt-padding-vertical: 5%;
@sbg-6_mobile-excerpt-padding-horizontal: 5%;
@sbg-6_mobile-overlay-bg: rgba(234, 226, 234, 0.5);
@sbg-6_mobile-title-font-size: 20px;
@sbg-6_mobile-excerpt-display: block;
 

/* This displays the Title */

  .sqs-gallery-design-autogrid {
  //Grid layout
  .summary-thumbnail-outer-container a {
    margin: 0 !important;
  }

  //Grid overlay
  .summary-content .summary-title {
    color: @sbg-6_title-font-color;
    font-family: @sbg-6_title-font-family;
    font-size: @sbg-6_title-font-size;
    font-weight: @sbg-6_title-font-weight;
    letter-spacing: @sbg-6_title-letter-spacing;
    margin-bottom: 0;
    text-transform: @sbg-6_title-case;
    word-break: break-word;
  }
  .summary-title::after {
    content: "";
    display: block;
  }
  
  .summary-content .summary-excerpt p,
  .product-price,
  .summary-metadata--primary {
    color: @sbg-6_excerpt-font-color;
    font-family: @sbg-6_excerpt-font-family;
    font-size: @sbg-6_excerpt-font-size;
    font-weight: @sbg-6_excerpt-font-weight;
    line-height: @sbg-6_excerpt-line-height;
    text-transform: @sbg-6_excerpt-case;
  }

  .summary-read-more-link {
    color: @sbg-6_link-font-color;
    font-family: @sbg-6_link-font-family;
    font-weight: @sbg-6_link-font-weight;
    letter-spacing: @sbg-6_link-letter-spacing;
    text-transform: @sbg-6_link-case;
  }
  
  .sqs-gallery-meta-container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    height: 100%;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    padding: @sbg-6_excerpt-padding-vertical @sbg-6_excerpt-padding-horizontal;
    position: absolute;
    top: 0;
    pointer-events: @sbg-6_clickthrough-option;
    -webkit-transition: background @sbg-6_hover-time-overlay;
    -o-transition: background @sbg-6_hover-time-overlay;
    transition: background @sbg-6_hover-time-overlay;
    width: 100%;
  }
  
  .summary-metadata--secondary {
    background: @sbg-6-metadata-bg;
    padding: @sbg-6_metadata-padding-vertical @sbg-6_metadata-padding-horizontal;
    position: absolute;
    bottom: 0;
    left: 50%;
    text-align: center;
    -webkit-transform: translate3d(-50%, 0, 0);
    transform: translate3d(-50%, 0, 0);
    z-index: 999;
  }
  .summary-metadata--secondary a {
    color: @sbg-6-metadata-font-color;
    font-family: 'montserrat';
    font-size: 13px;
    font-weight: @sbg-6-metadata-font-weight;
    letter-spacing: @sbg-6-metadata-letter-spacing;
    text-transform: @sbg-6-metadata-case;
  }
  .summary-title,
  .summary-metadata--primary,
  .summary-read-more-link,
  .summary-excerpt,
  .product-price {
    opacity: 0;
    -webkit-transition: @sbg-6_hover-time-content linear;
    -o-transition: @sbg-6_hover-time-content linear;
    transition: @sbg-6_hover-time-content linear;
  }
  .summary-metadata-item::after {
    display: none;
  }
  .summary-thumbnail {
    -webkit-transition: -webkit-transform @sbg-6_hover-time-image;
    transition: -webkit-transform @sbg-6_hover-time-image;
    -o-transition: transform @sbg-6_hover-time-image;
    transition: transform @sbg-6_hover-time-image;
    transition: transform @sbg-6_hover-time-image,
      -webkit-transform @sbg-6_hover-time-image;
  }

  //Grid hover mode
  .summary-item:hover {
    .summary-title,
    .summary-metadata--primary,
    .summary-read-more-link,
    .summary-excerpt,
    .product-price {
      opacity: 1;
    }
    .summary-thumbnail {
      -webkit-transform: scale(@sbg-6_hover-scale);
      -ms-transform: scale(@sbg-6_hover-scale);
      transform: scale(@sbg-6_hover-scale);
    }
    

Add to Home >D esign > Custom CSS

body#collection-5ec6a3af56b1945a89fd3275 .summary-item {
    overflow: hidden;
}

Sorry this is late, I had other deadlines to work on.

This worked for the people page but not the project page -Site URL: https://corn-apricot-zn88.squarespace.com/portfolio. I thought Collection would be the same.  (PW: BA47)

Thoughts? 

@deaton72 building off @tuanphan example you can just remove the body/collection ID for it to apply across all summary items

 

.summary-item {
    overflow: hidden;
}

Working demo:
 

Thank you so much!!