Installed beta 13 last night and all my cars that worked in B11 are broken. I read the release notes and nothing stood out that would cause my cars to be broken. The game won't load at all with them in the directory. Must be something model related?
Checking, please wait...
I think it's the tyre folder thing. Will have a crack at fixing it tonight.
Yes, the only physics format change is the tyres shared folder.