MP3 File Set Up

I use Audition on a very basic level. I import multiple voice recording files from an SD card, tidy them up a bit & then upload to We Transfer to send to customers. Lately I am having problems where the odd file in the batch, seems to become corrupted (see attached sound clip) This is happening when I export it from Audition to my computer (the original file on the SD card plays fine) I believe I may have accidentally changed by export settings previously, which might explain it. Can anyone advise if these settings are OK for a simple set of voice recordings? Thank you.