A file would not import

First check whether the file can be selected. WAV, MP3, AIFF, M4A, FLAC, MP4 and MOV work without extra software. MKV, WebM and OGG appear only when ffmpeg is installed; otherwise the picker hides them and a drop is refused. Install ffmpeg yourself or convert the file to a supported format, then add it again.

A meeting appears with an import error

A Processing Failed notification names the file and reason. If some tracks were saved, the meeting remains in the list with an error on Recording. Restore access to missing original files at their original locations, then click Retry Import on that step. The same meeting continues and already stored tracks are kept. Relaunching does not retry it for you.

If nothing was copied, the empty meeting is removed. Fix the cause and add the file again. If the complete recording was saved but a later processing step failed, the audio remains with the meeting; retry that later step instead.

Your result: the meeting has its stored recording and can continue to transcription. Your source files are kept unless you asked Recordstead to move them to the Trash after a successful copy.