No sound on exporting audio mixdown

Hi, I’m using Cubase LE 10.5 with Windows 10 and having the following issue:

When exporting audio mixdown, I hear nothing. The audition volume slider is active but no sound. I have the ‘realtime export’ box ticked but nothing. All the level indicators are moving as they should but nada. When the resultant file is opened in iTunes track info tells me it’s an audio file and is the right length but won’t play and no sound when skipping forward in the track. please advise.

Are you sure that your channels are routed to the Stereo Out bus?
Also as a side note, any reason you are exporting in mono?