Known Issue Opening Nova Projects on macOS Sequoia
After updating to macOS Sequoia (15.0), you may see an error message saying ‘The file couldn’t be opened’ when trying to open projects in Nova, or add new projects:
This issue appears to be caused by a bug in macOS Sequoia, preventing Nova from resolving the paths of saved projects. Restarting your Mac should fix this issue. If you continue to see this issue after multiple restarts of your Mac, please contact us.