For some reason, I can't split up a division that I created earlier. I know I saw this asked before, probably in beta, but I don't remember the fix leure:
and figured I'd ask out here, just in case anybody else is having this problem..
But...after the last fixes (my good friend and I have been playing the same game via email until the main fixes have been done before we start again..) I noted that two of my formed divisions, with a similar problem to yours, could now have units added to it. In making them larger I could now it seems break them down. I Don't know if that helps....
...And I came upon postings in regards to comments made about the Shiloh scenario by Heldenkaiser and the splitting of divisions. Pocus mentioned that maybe in a week a patch would be out to fix it. Maybe that will take care of this problem...since as I am double checking I seem to be left with a very small core of troops with the officer/HQ's in question - though now I can add to it to make it larger...