If you have AutoBackups on (it's a preference), the default back up location is in Documents > Twinmotion XXXX.X if you are on a Mac. Go to the folder of the previous version and it should have a back up in the older format.
If you have AutoBackups on (it's a preference), the default back up location is in Documents > Twinmotion XXXX.X if you are on a Mac. Go to the folder of the previous version and it should have a back up in the older format.