Hey man,

After the conversation yesterday I decided to check it out a bit with the snapshotservice and I figured out what changed thanks to Nathan Woulfe on the Slack community.

Seems they slightly changed how to get preview IContent content. Here is an excerpt from my content api package:

[RoutePrefix("api/preview")]
public class PreviewApiController : UmbracoApiController
{
    private readonly Lazy<IContentResolver> _contentResolver;
    private readonly IPublishedSnapshotService _publishedSnapshotService;
    private readonly IUserService _userService;
    private readonly IContentService _contentService;

    public PreviewApiController(Lazy<IContentResolver> contentResolver, IPublishedSnapshotService publishedSnapshotService, IUserService userService, IContentService contentService)
    {
        _contentResolver = contentResolver;
        _publishedSnapshotService = publishedSnapshotService;
        _userService = userService;
        _contentService = contentService;
    }

    [Route("{id:guid}")]
    [ResponseType(typeof(ContentModel))]
    public IHttpActionResult Get(Guid id)
    {
        _publishedSnapshotService.EnterPreview(_userService.GetUserById(-1), _contentService.GetById(id).Id);

        IPublishedContent content = _publishedSnapshotService.CreatePublishedSnapshot(
                _publishedSnapshotService.EnterPreview(
                    _userService.GetUserById(-1),
                    _contentService.GetById(id).Id))
            .Content.GetById(id);

        ContentModel contentModel = _contentResolver.Value.ResolveContent(content);

        return Ok(contentModel);
    }
}

I just verified this works in Umbraco 8.3

is working on a reply...