It seems that my refresh button is mapped to the 'toggle all/none' functionality, instead of the 'refresh' functionality, in the 'Manage tracks/routes' overview.
My version: OruxMaps v6.5.10 Donate
Regards,
Rolf
It is not a refresh button, as it looks like.
It is a reverse function. Select one track, click on reverse. Now you see all track except one is selected.