I have upgraded a site or two to 7.4.2 and 7.4.3

now crops are not working pulling from a mediafolder using my partial.

@{

var galleryFolder = Umbraco.TypedMedia(Model.Content.GetPropertyValue<int>("galleryFolder"));   

// Get all child items based on the 'CWS_Gallery' and group them is 4

if (galleryFolder != null){

<!-- Content -->

<div class="row">

    @foreach (var group in galleryFolder.Children.InGroupsOf(4))
    {
        foreach (var item in group)
        {
            // find you whether is the first item of the group and set the css class
            var itemClass = item.IsFirst("first item left", "item left");

            // tell images and links where to find sources of datatypes
            var src = item.GetCropUrl("cropper", "thumbNail");
            var photosrc = item.GetCropUrl("cropper", "photo");



    <div class="col-lg-3 col-md-3 col-sm-3">
        <div class="@itemClass">
            <a class="fancybox" href="@photosrc" data-fancybox-group="gallery"><img src="@src" alt="@item.Name" />@item.Name</a>
            <span>@item.GetPropertyValue("PhotoText")</span>
        </div>
    </div>

    }
    }

</div>
<!-- /Content -->       
}


}

I see the updated documentation but nothing seems to work.