I think ToString on a Guid will include curly braces. I think you’ll need to call ToString(“N”) to have it exclude the braces.

They frozen price key is generated without braces so if you don’t exclude them, it won’t match.

For anyone who is facing the same issues, here's my Event hooked into the PublishedNotification.

Because I don't want to thaw prices when the price hasn't changed, I am checking if the Property was dirt (thanks Matt).

This is my way of doing it:

 public class ContentPublishedEvents : INotificationHandler<ContentPublishedNotification> {
    private readonly IContentService _contentService;
    private readonly IPriceFreezerService _priceFreezerService;

    public ContentPublishedEvents(IContentService contentService, IPriceFreezerService priceFreezerService)
    {
        _contentService = contentService;
        _priceFreezerService = priceFreezerService;
    }

    public void Handle(ContentPublishedNotification notification)
    {
        foreach (var node in notification.PublishedEntities)
        {
            if (node.ContentType.Alias.Equals(DtProduct.ModelTypeAlias))
            {
               if(node.WasPropertyDirty("price"))
                {
                    _priceFreezerService.ThawPrices(partialKey: node.Key.ToString());
                }
            }
        }
    }
}

Hope this helps anyone.

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