Reflected:
Proper skin integration is what I am working on now. It is next.

Avatar:
The error occurs when the RoFCampaign mission description file (not to be confused with any of the RoF files) is not there. ROFCampaign creates the mission description file when you create a mission. It is deleted when you enter mission results.

1. Maybe you already flew that mission and entered the results ... or accidentally entered results without flying the mission.
2. The file got deleted some other way.

Workaround:
Create a mission but don't fly it.
Enter results for the mission that you just flew.
Create another mission to fly.