I've setup a couple of grid editors using DTGE. When editing the values are persisting as expected.

When rendering on the front-end, all but the first property is NULL.

For example

Video

• Media | Media Picker
• Aspect Ratio | Dropdown (value set in the CMS but NULL when rendering)
• Title | Textstring (value set in the CMS but NULL when rendering)

Any help would be appreciated.

@inherits UmbracoViewPage<IPublishedElement>

@{
  const string altTextAlias = "altText";
  const string aspectRatioAlias = "aspectRatio";
  const string mediaAlias = "videoId";

  var media = Model.Value(mediaAlias);

  if (media == null)
  {
    return;
  }

  var aspectRatio = Model.Value(aspectRatioAlias, fallback: Fallback.ToDefaultValue, defaultValue: "16x9");
  var altText = Model.Value(altTextAlias, fallback: Fallback.ToDefaultValue, defaultValue: null);
}

<div class="grid-section__media flex">
  <div class="grid-section__video flex justify-center">
    <div class="video-embed-wrapper">
      <div class="video-embed aspect-ratio aspect-ratio--@aspectRatio aspect-ratio--loading" data-video-embed="@media">
        <figure class="aspect-ratio__object flex fade-out" data-video-embed-object="">
          <img class="object-fit-cover w-100" data-src="//i3.ytimg.com/vi/@(media)/maxresdefault.jpg" alt="@altText">
          <div class="absolute center">
            <div class="video-embed__play cp">
              <div class="icon  icon--play">
                <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="30" viewBox="0 0 24 30">
                  <g fill="none" fill-rule="evenodd" transform="translate(-14 -10)">
                    <mask id="h" fill="#fff">
                      <path d="M14.583 10.417v29.166L37.5 25z"></path>
                    </mask>
                    <path fill="#000" d="M0 0h50v50H0z" mask="url(#h)"></path>
                  </g>
                </svg>
              </div>
            </div>
          </div>
        </figure>
      </div>
    </div>
  </div>
</div>

Umbraco 8.5.4 DTGE 1.1.0