Do I need to upload the file again if one dubbing language failed or I want to add another?

This article applies only to Interpretation file-translation projects. For realtime interpretation, follow the realtime instructions for language changes, restarting capture and session usage; do not apply file-project add-language or failed-dubbing retry procedures.

You do not need to redo the whole project for one language. Open the original project; completed languages remain available. To add one, select a language not already in the project, review its quote and confirm. For a failed language, open its usage details. If a retry is available, check that language’s new quote before proceeding. If processing or billing is still being checked, follow the original task.