Yes, this project was already completed and saved. Plenty of space in my drive for the cache and project files.
It is a simple project processed from video. Nothing crazy like my big projects. Prob between 50-200 cams if I had to guess, but I forget exactly. Not the type of project RC usually complains about so I was surprised to run into this.
I will try the reset now and report back with my results. Thank you for your help. PS, been a while, is Wishgranter still kicking around here? I remember he helped with some early projects of mine in 2016. Good people in these 'here forums ill tell you awhat.
EDIT: Resetting RC following the link above did not solve the problem