Cloud recording has CC but no transcript

[AndrewD]

I've done cloud recordings of many meetings before and with live transcriptions enabled, the audio transcript shows up on the side of the page with the recording, and closed captions that appear on the screen itself can be turned on or off. I recently recorded another meeting with live transcriptions enabled and the CC still appear but there was an error that said "transcript could not be generated" or something like that... How can there be captions but no transcript???

More importantly does anyone know what causes this so I don't recorder another meeting again only to get no transcript?