There's some late-war trouble especially with the armour formations in spob34 ... :
Lots of them end in 8/43 or 9/43. (isn't 9/43 the date of the surrender?) - yet, lots of arty and inf formations run through to 12/46
You can start generated (what-if) battles/campaigns ("Operation Unthinkable") after that date just fine ... .
Even long campaigns, which then end 2 years before they started - but this is said to be a bug
http://forum.shrapnelgames.com/showt...866#post755866