This may have to do with older routes having differently named data files. In previous versions of TRS19, the route would come in blank. The new "blank" is grass-textured.
From TS2009 onward, the data files, meaning for routes, tracks, etc. are named mapfile.obj, mapfile.trk, etc., instead route-name.obj etc.
There are two ways to get around this:
1) If you have TS12, install the route in TS12 and export as a CDP.
When you install the route in TS12, ignore any missing dependencies because you're only using this as an exporter and not editing the route in that version.
Open the route and do a save as.
This will create your version you can export.
2) Open up the route's folder in Windows Explorer.
Rename the following data-files from route-name to mapfile. As always first make a backup of the data to ensure nothing gets stuffed, so copy the folder to a safe location. (If you don't there's a guarantee something will go terribly wrong because it can!)
Example:
Here's the route files from my original route.
e & e-rev2.bmk
e & e-rev2.gnd
e & e-rev2.obs
e & e-rev2.trk
Renamed to:
mapfile.bmk
mapfile.gnd
mapfile.lyr
mapfile.obs
mapfile.trc
mapfile.trk
You can keep the old files in the folder, TRS19 ignores them.
Now for the "tricky" part.
Drag the route-folder into Content Manager.
That will install the route and you should be good to go.
If you still have the bad version, submit the route if it the installer shows open for edit.