<t> Well, third time lucky. The map finally seems to play. Uninstalled the game, which deletes the map files and this time it all seems to work. Still, no idea what was wrong there but guessing it was some form of file corruption of the graphic file.<br/>
I appreciate all your advice and ...

<t> Thank you both for getting back to me. This error does not occur with any other scenario in the game. I've started up each one just to check and no issues except with Vezins. There are no mods installed - I have not altered anything except setting my preferences in the game's Options. As ...

<t> In the Vezins scenario, an error screen appears 'Unable to play because the disk is full' when loading the game map. I have re-installed the game but same error occurs. Over 1/3 of the disk space free (50GB+), so no idea what this means. Have not experienced this in any other scenario but still ...