You just have to understand that certain things appear to happen (column from center and crossing units) because of the way the computer sees things. This is a yacical simulation, which means where you deploy your units and how you make use of them.is what is important...how they look changing formation is just aesthetics.
I've complained about the formation glitches myself, but in doing some testing to come up with a save to send to Norb, it looks to me like the issue is mostly cosmetic. I had a game tonight where two of my regiments suddenly turned at right angles to an enemy. In both instances, the unit had two enemies, one directly in front and another off to the side, and the unit turned to face the more oblique enemy leaving it at a right angle to the main enemy to its front. Looked horrible and stupid. But in clicking on the unit, I realized that it was still targeting the main enemy unit - the unit to its original front - and I didn't see any clear indication that it was taking excessive flanking fire as a result of its turn. It looks to me like the turn was mostly cosmetic. And in both instances, my units stayed in that right-angle position for only a minute or so, then turned back to their original positions, apparently no worse for the experience.
So while this is frustrating as a matter of aesthetics, I'm hopeful that it's not a major gameplay issue.
Plan to send the save to Norb tomorrow.