App does not start
Symptoms
Section titled “Symptoms”Synthezia closes immediately, never presents its main window, or shows a startup error before you can open a session.
Likely causes
Section titled “Likely causes”The application bundle, local runtime assets, operating-system compatibility, security controls, or a previous incomplete installation can prevent startup. A configured minimum version is not a verified hardware matrix.
Fast checks
Section titled “Fast checks”Restart macOS, verify that the artifact came from the approved channel, and preserve the exact visible message. Do not infer that a missing local model is the cause until the application reaches the model UI.
Resolution
Section titled “Resolution”Try a freshly obtained approved artifact only after preserving your existing application data and source recordings. Escalate a repeatable startup failure with the collected environment details rather than resetting data first.
Data-loss warning
Section titled “Data-loss warning”Do not use Reset app data if the application cannot launch; it removes records and does not repair a bundle or platform failure.
Information to collect for support
Section titled “Information to collect for support”Collect application version, artifact name, macOS version, architecture, launch message, when it closes, and whether a prior build opened on the same device.