After having copied a bunch of images into a new album (outside of digikam) I start digikam, select all the images and go to the geolocation module. Then all images are displayed without thumbnails.

Workaround: Close digikam, start it again, select the images, go to geolocation module – this time they're all there.

(The thumbnails are visible in the "normal" digikam window!)

Reproducible: Always

Steps to Reproduce:
1. copy images to album (outside of digikam)
2. start digikam
3. select the newly added images
4. go to geolocation module
Actual Results:  
no thumbnails are visible in the geolocation module, only placeholders

Expected Results:  
thumbnails should be visible in geolocation module

it works after restarting digikam