Hi, bchewsy. Premiere Elements has its own forum and you'll get better answers to video questions there. I'll move this post for you.
Hi Barbara. I thought I posted to Premiere Elements forum but guess not. Thanks for moving my post to the Premiere Elements forum.
Not knowing that camera, my question would be which Audio channels in the file, are being used. Some cameras can record to different Audio channels (some Sony pro models), and record, under certain settings, to channels 3 & 4, rather than 1 & 2. In those instances, Premiere (Pro, or Elements) will not be picking up the signal in channels 3 & 4. In those cases, one workflow is to basically convert the file from having the Audio Stream on 3 & 4, and moving them to channels 1 & 2. I do not know if this is the problem here, but would explore the exact channel placement of the muxed (combined, or Multiplexed Audio & Video Streams), in a program, like MediaInfo, to see which channels are used.