When i first research squads and companies, i have the ability to make 4,6 and 10 strong groups, but after a while, either after lots of units created, or just turn spam, the numbers go funky(a very technical term:P) and eventually i end up with just 1 unit for each of the groups.  While that seems to be a problem, the game adjusts the construction price, but not the wage cost.

Here's a pic to show you what i mean, if there's anything else you need (a save or such) let me know