What do I need to do if I upgraded my macOS to Catalina and my software doesn’t open? Marisa Labrador October 01, 2019 14:19 Updated Follow If you are using Harmony 16 or Storyboard Pro 6 (or prior versions), you need to revert to the previous version of macOS. Related articles Will the release of Catalina affect Toon Boom software on Linux or Windows OS? What impact will upgrading to macOS Catalina have on my software? If I am working with Harmony 16, can I share my assets with someone that is working with Harmony 17 on macOs Catalina? If I have Harmony 17 can I share my assets with someone that is working with Harmony 16? I have a previous version of Harmony, what do I need to upgrade? Comments 0 comments Article is closed for comments.