How to edit PP sequence in Audition?

I'm fairly new to Audition and really only know how to use the "Edit clip in Audition"  function from Premiere. I'm trying to edit a whole sequence together but when it opens in Audition it's not what I expect. There doesn't seem to be any audio. My sequence in PP is over an hour long but in Audition the .wav file is only 1 second long. There's a video file that's the correct length but there doesn't seem to be any audio in it. There's a third file as well but I don't know what it is and for some reason it's length is a little less than half the total length of the sequence. I've watched a number of tutorials on it but they all go straight from "Edit in Adobe Audition > sequence" to being able to add effects and things. I don't know why mine's different. Here's a screenshot:

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Any help would be greatly appreciated.

Thanks!