Hi menion
if i change the "folder style" of an track folder e.g. width of the track, all map previews are gone and world map is visible.
There is no refrech :-[
i have to open each track or do a long click on each world map one by one to see the map preview again
(https://s12.postimg.org/3xi5yuhrt/Screenshot_20170330-203932.png) (https://postimg.org/image/3xi5yuhrt/)
Well, yes ... there is currently no background task that should refresh all previews at once after some change, sorry.