Ok update; I think I resolved my issue. I had messed up somehow adding the mod (although not sure how) but when I replaced all data in the DESIGNS folder with the mod data it now seems to be ok except not seeing the mods,...oh well

Sorry guess for some reason it was missed. I have a Steam installation on my "D" drive.. It said extension was not permitted

After watching the Twitch stream I was intrigued to start a new game; so chose "new game". After selecting config and race starting the game crashed. I noticed a file "fatal" date stamped at the time of crash so attaching it just in case it can help.