I'm currently playing 1.03.1as the WE vs the AI with manual replacements enabled. I started the game with 40 [French] Line Infantry replacements, 5 Militia replacements, 5 Cavalry replacements and 40 Light Artillery replacements. Despite heavy losses in infantry, cavalry and light artillery, the number of replacements in these categories has never changed; I've never had to buy any replacements. It's now late June 1915. At one point after a costly assault, I had 136 line infantry hits requiring replacements and 40 replacements. The next turn my hits had dropped to ~30 while my line infantry replacements remained at 40. It's the same story turn after turn. I don't track the other replacement categories with any regularity because they require less micro-management, so I'm not sure if this problem affects all categories or just the ones I've mentioned.