I am fully drafted, but this last tick, I was charged draft costs for a partial soldiers, which I never received.
Draft Costs 15gc
I assume it is just an issue where a variable isn't converted to a whole number before draft costs are considered. So that 14.2% of a soldier wasn't enough to register 1 new soldiers.. Either that, or it was the cost to send him to basic training and he failed out after only a few days!
Support ID E03A4969