The issue appears to have been resolved since updating to 4.50.15.b. Many thanks for all the help and advise.
Cheers
Klink

Forgot to say...

I'm not sure if its the last map of the turn, but I have a feeling it may well be.

Steve - I'll try and attach the saved file some time soon; I'll see how the end of this turn plays out first.

Again, thanks for the help

<t> Sorry for the delay in responding - I haven't tried unistalling the game as yet.<br/>
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It doesn't crash everytime I play Houffalize. I have played it succesfully, only to find it crashes the next day/turn. I re-started the campaign from scratch and deliberately avoided Houffalize. However ...

<t> I've re-started the Grand Campaign as instrtucted and reached Day 6 and the same thing has happened again on the most Southern Map - it freezes and loses the last file I loaded. I have saved at every opportunity and kept the saved files when a half day comes to an end. I loaded the last file ...

OK, I'll give it a go. Thanks for the help.

<t> The latest patch has now been applied (states version 4.50.14 on the main menu), but the issue still persists. <br/>
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As a bit of background info; the first time I played this map on the 25 day campaign exactly the same thing happened and I had to start the whole campaign again. On my ...

<t> I'm playing The Grand Campaign, day 5 turn 2. The latest map is Houffalize, but evertime it finishes (either through times up, truce or morale gets too low) the game locks up on the loading screen. I have to use "end task" to free the game up. When I go back in, the saved game I was using has ...