I am currently in the process of revising some tooling for a customer and this job has been sitting on my hard drive for a few months. I have never had any issues with the model until today. When I opened the model, ALL THE BOLTS CHANGEd SIZES!!!!! When I look in the design tree, instead of the bolts showing up as a tool box feature, they are now appearing as a part file. How could this happen?? extremely frustrated any help is appreciated.