Radio Download Skipped Even with --force

[Budgie]

Trying to download an episode of Classic Serial.  For reasons only they 
Know, BBC has used the same title for episode 5 and episode 6.  I have 5 
and am trying to get 6 but the download fails.  Here is the text from 
terminal:-

[CODE]
IBMx3400:~> get_iplayer --get 10823 --type=radio --force
get_iplayer v2.84, Copyright (C) 2008-2010 Phil Lewis
   This program comes with ABSOLUTELY NO WARRANTY; for details use 
--warranty.
   This is free software, and you are welcome to redistribute it under 
certain
   conditions; use --conditions for details.

Matches:
10823:  Classic Serial - Sword of Honour: 6. Unconditional Surrender, 
BBC Radio 4, Classic & Period,Drama,Popular,Radio

INFO: 1 Matching Programmes
INFO: Checking existence of default version
INFO: flashaacstd1,flashaaclow1 modes will be tried for version default
INFO: Trying flashaacstd1 mode to record radio: Classic Serial - Sword 
of Honour: 6. Unconditional Surrender
INFO: File name prefix = 
Classic_Serial_-_Sword_of_Honour_6._Unconditional_Surrender_b03g8gv7_default 

WARNING: File 
/home/alastair/Classic_Serial_-_Sword_of_Honour_6._Unconditional_Surrender_b03g8gv7_default.m4a 
already exists

INFO: skipping this programme
INFO: You may wish to try --modes=wma for version default
INFO: Note that wma mode is real-time only, and thus is generally only 
suitable for recording live radio.
ERROR: Failed to record 'Classic Serial - Sword of Honour: 6. 
Unconditional Surrender (b03g8gv7)'
[CODE]

Not seen these symptoms before.  Could it be result of recent updates 
and my errors?

Grateful for some help please.
Budgie