Hello, thank you for your feedback.
Normally, if certain language tracks have been unchecked, UniFab Converter should not continue processing those unselected tracks. To confirm whether this is a known issue or related to a specific file, output configuration, or track type, could you please help us confirm the following details?
Did this happen with audio tracks, subtitle tracks, or both? Also, please provide your current UniFab version, the output format/profile you selected, and a screenshot of the language track selection screen before conversion.
If possible, please also share a source file or a short sample that can reproduce the issue, so we can further check it on our side.