As assets are uploaded to DF Studio, the images are placed into a work queue. Placeholder thumbnails appear while images are in the queue, giving immediate access to manage the assets (edit metadata, create Setups, etc.) while DF Studio works to create preview images.
Previews are normally generated to replace the placeholder images within a few seconds, but the process can take as long as a few minutes. The amount of time required to generate previews depends on a number factors, such as file size and the amount of work currently queued in the system.
Clicking the refresh button next to the Project name will update the screen to display the latest preview images. The current status of any tasks in the work queue can be seen on the Activity page.