I just destroyed 5 months of Trainz activity. How did I manage that? Simple. I copied my data folder backup copy over the active one. Yep. The backup was done in January, So now my current data folder mirrors the backup, instead of the other way around. And since I only have 1 backup folder, everything since January is GONE. A route that I was starting to fill in different areas with more detailed scenery. Let this serve as a warning to everyone. Double-check the PATH of your data folder. Not only what Trainz says, but check the date of the last change to the data. A simple check like that can save you from total disaster.