Hilight track that won't play and - 'Track - save track to file'.
If RB says there is silence at beginning and asks to include it, say yes.
Then highlight blank track and - 'Audio - import wav file'. Make sure to import to beginning of song so it lines up.

Try the resulting wav file in WinMediaPlayer also if needed..

If no joy try Mac's suggestion


Make your sound your own!
.. I do not work here, but the benefits are still awesome