Occasionally when you're correcting a transcript, you might see an orange underline under some words. When that happens, it means that Descript was unable to sync the text to the underlying audio.
If you correct the text to match the underlying audio, the error will resolve itself. For longer regions, you might prefer to manually resync the audio / text.
Manually Resyncing Audio / Text
Right click on a text selection and choose Resync Text and Audio.
A popup containing the text you've selected with an audio playback bar above it will appear.
You can listen to the audio contained within this selection by clicking the play button at the top of this window.
While listening, type the words being spoken in the text box.
Now, click Re-Align and Descript will sync the audio and the words you've typed.