My artist owns a full version key for Spine and I own a trial version. All I need to be able to do is view the animations he creates, which is why I don't need a full version. However, some animations he creates cannot be opened in my editor. I get an error
"Sorry, an error occured while reading the project file. Please note that projects which have been saved with a newer version of Spine cannot be opened by an older Spine version."
I just downloaded the newest version of the trial so I'm not sure what to do. Sometimes the animations open fine.