My Army "wiped out" after helping ally in siege

[Koolhan37]

I decided to help an ally in a siege, but sadly he lost the castle before I could get there(had to fight a fourth army in the field), so the battle ended as a costly enemy victory with most of my army intact.

The results screen showed my casualties and the army intact. After I closed that screen....

-My general got promoted, and then fell to the ground as if dead.

-I got no message of my army being crushed or the general dying but i can't select him.

-He's just lying there on the campaign map and can't be used.

It was a really awesome battle and an important army(I just got Realm Divide), and now a part of my flank is exposed and it's really frustrating.

[osheamat]

Yea I had had this also, if it is a loss and there are survivors, they die anyway because they are out of movement points. IDK. I have also noticed a unit is deleted if it has less then 5 men after a battle some times