Man...things change so often with shaders patches and whatnot, I was able to load and setup a race, however CM had to do a quick fix to continue.. It may help to use Content Manager as it reveals what is lacking due to current updates.... in the end it should work. So many variables, partly why I stopped modding to be brutally honest, because of troubles I had as you are. Just keep trying, it should end up working..if it does here on my end, then surely it is just a mix up of files or updates is my guess.