problem with the miniature maps (Map thumbnails) in the track management

[Graf Geo]

Hello, there is a small problem with the miniature maps in the track management (track map thumbnail - mini-preview of the map with track). This was already mentioned in December in the german speaking forum. The problem has existed for some time and is also present in the current version.

Track map thumbnail for tracks over a certain length or extent (about 10-20 km) are not created. Instead a white background is displayed. Existing track map thumbnails disappear when updating by long clicking on the map.

This screenshot illustrates that:

The first and last map thumbnail in the list is not generated, the track extent of both tracks is greater than about 20 km each.