Auto Transcription not finishing the process

I have started playing with the Beta today and had the same problem. I quit out of Premiere Beta and tried again and it worked in a minimal amout of time.

PS I checked my sequence and had many audio tracks created by a clip that had 16 channels, though many had no content. I deleted these channels before reattempting. Maybe this had no bearing on it working on the second try but thought I'd mention.