ToME: the Tales of Maj'Eyal

I was running around for some ammo and could not create any... This is what happened, I ran out, wielded my dagger, kept resting, tried ammo creation, it said that I tried it, but did not reduce stamina. I tried Bree, old forest, etc. Then it hit me, try wielding my bow... Then it worked... Odd...

Not a bug. The skill (talent?) description says that it creates ammunition for whichever launcher you are wielding. If you aren't wielding a launcher, then it's not going to work.

Well, that would have helped if I read the entire talent description...

Seems odd to me, but I guess an archer could be using a sling, or vice versa.

yeah, what should happen is a message saying that you have a invalid weapon equipped (must be a bow or a sling), and not use the talent up.