As the topic suggests, I have noticed an issue when in the tutorial (yet to test it in an actual city) that when you are creating Metro Lines, if you adjust the depth of the track (to go under a valley for example) you loose the ability to place the metro stations. You can only lay the track and connect it to already existing stations.
Has anyone else noticed this in their own cities, or is it a quirk of the tutorial?
Prometheus2704
::No mods installed on a fresh install of Cities XL 2011::
EDIT:: Just confirmed that it occurs in normal cities as well