Hi all,

I'm working on an Umbraco 7.2.8 site that allows the upload of images on the front end. Users also have the ability to crop and rotate their images, also on the front end. This works fine and the thumbnail shown in the media section for that image is a thumbnail for the rotated/cropped version.

I've ported the same functionality to the backoffice as part of a property editor. The server-side code that manipulates and replaces the media file is shared. However, when an image is rotated/cropped through the backoffice the thumbnail is not updated.

This is the thumbnail returned by the following API call:

/umbraco/backoffice/UmbracoApi/Images/GetBigThumbnail?originalImagePath=/media/image.jpg

So I have a couple of questions:

1. Why would the thumbnail not be getting updated?
2. Is there anything I can do to force the thumbnail to be regenerated? I have tried manually saving the image in the media section but that doesn't work and I need a programmatic approach anyway.

Thanks.

Steven.