I just reloaded Solidworks 2019 and attempted to open a parts file I created in Solidworks 2019. However I get the following message: "Future version file opened. Solidworks CAM will be deactivated for this file." Not sure what this means since I created the file in the same software version, but I am not sure the service pack was the same. When in this state, I can only view the part; I cannot make any sketches or manipulate any plane from the file. The only thing I can do is take measurements from the part. Can anyone assist? Thank you in advance.