Oddly enough I have been unable to reproduce the problems I myself have faced in the campaign regarding charges.

In Custom battle my knights have does exactly as they should. Even when moving them at odd angles before ordering a charge, they still carried it out. Meanwhile in my campaign battles anything but the most perfect situations and setups have ended up in the dreaded 'swordcharge'. I wonder what gives.

In any case, I have begun to view the Custom battles a bit sceptically when it comes to cavalry.