SO only working with new document files
Hello, running Sketch 50.2 and SO 15.1. SO doesn't work on my older files. When I create a new Sketch file it works. If I copy and paste all my symbols into a new document it works too. It's just older documents won't run the plugin anymore. I tried installing older versions of Sketch and the plugin and I get the same result. I'm on OSX 10.13.4. 

Thanks!