S.T.A.L.K.E.R.: Clear Sky Forum

Hey I'm using a trainer in Stalker Clear sky for the sake of ammo....but I'm having one issue with either the trainer or the game?, the infinite ammo cheat works for my shot guns, pistols but for some reason it won't seem to work for the AKM? Although ti will have 99 bullets, the gun won't reload, I thought maybe my save might be affecting it but I started a new game and after I unloaded my first clip when you start with the AKM it won't let me reload when I have the trainer on.
 
Anyone else having the same problem? Any suggestions? Maybe its a glitchy trainer?