Yes, I believe only the first time you attempt a Chess Mentor lesson will it affect your score and progress report. If we had it so that you could attempt the lesson a second time rated then people may abuse the system by doing it a first time to see the solution and then quickly do the lesson again remembering the solution to the lesson.
Q: are the scores in the progress report reflected by your first attempt score? Can I improve my progress report by redoing these lessons? It appears that I can't redo them to improve my score. just checking thanks! mark