Korsun 44

[Gordons HQ]

I'm playing Korsun 44, 4th Gds Army Alt scenario and according to the description of the scenario on the evening 25th Jan brought the release of the 5th Don Cavalry Group. It's goal was to quickly smash the rear German area
However in the game I'm playing these units are not released until 2000 26th Jan In this 18 turn game that is just about the end of the game and it's placement in this scenario would seem to be completely useless as it stands.
I've checked the standard scenario and this is the same.
I feel this must be some mistake in the release time in the game and I'm pretty sure my HPS patches are up to date.
Anyone any idea's

Cheers Gordon