What version of Premiere Elements are you using and on what computer operating system is it running?
Are you having any issues with the audio within the opened project prior to the export that you select?
What are the specific export settings under the Advanced Button/Video Tab and Audio Tab for your assumed
Please verify export settings under Advanced Button/Video Tab and Audio Tab of each choice.
How are you judging if the audio is exported or not...just by no sound with the player at playback? What player?
If you get a MediaInfo (Tree View) video and audio properties readout for the file, does the readout show audio as well as video properties?
Please review and consider and then let us know the details and results.
Having Premiere 12.0 OS W 8.0
I was using audio from my NAS and exporting it also to my NAS
Now using all audio and export to c drive, it works