When double clicking on a tiff image dot in the Map View, nothing is displayed in the image preview window.
This happens only for non 8 bit tiff images.
In order to get a preview for non 8 bit tiff images, it is necessary to compute a gray scale image. This is done during step 1. Initial Processing and therefore such images can only be visualized after Initial Processing.
Run step 1. Initial Processing: 202557439. Once processing is completed, the images can be visualized.