I looked at the scenario files, and you discovered a new bug.
The bug was introduced after the publication of the Spanish scenarios, which used to work fine.
This problem occurs because the program does not find the eastward icon for the trains
IF the icons are specified globally in the Type: command.
In most other scenarios this problem does not occur because the icons are specified
for each individual train (i.e. the Type: command is inside the Train: definition, not at the top of the file).
One way to fix it would be to duplicate the Type: command for each train in the .sch file,
at least until I publish a fix.
Thanks,
Giampiero Caprino