If you've previously generated transcript for a sequence, the transcription file will remain available even after restarting Cutback or Premiere Pro.
Go to [Auto rough cut] or [Edit captions] and select [Open], or click on [Transcribe video for auto rough cut] > [Open previous transcript] to load the subtitle file.
Caution
If there’s an existing subtitle file and you select [Transcribe video to edit captions] > [Transcribe again], it will overwrite your previous work. The previous file cannot be recovered, so proceed carefully.
Also, if you edit the sequence in Premiere after applying subtitles via Cutback, and then reopen Cutback, subtitle sync issues may occur.