Ambiences from Camera don't have thumbnails [released]
If you create an ambience from a picture in the Gallery, it will move to an extra menu where you can edit the details of your newly created ambience. If you do the same thing from the Camera, the extra menu doesn't show up (the new ambience does get applied). If you go to Settings -> Ambiences and favourite/unfavourite the new ambience, the thumbnail will be gone.
In case it matters, I keep my pictures on a microSD card.
Well spotted @nthn
Basically, the 'Edit' option is not in the camera roll's pulley menu as is found in Gallery's pulley menu
Spam Hunter ( 2017-06-01 14:14:04 +0200 )edit