Okay, I have Steam version of Witcher 2. Completed Prologue, where I was able to equip and throw Samums, and I use them few times in Prologue.

Now when I'm at Chapter 1, landing, when pressing Ctrl and choosing Alchemy to craft more bombs for me to use in battles, game says Item succeed (and crafting materials spent, checked by myself), but no any bombs appears in my inventory, Bombs tab is empty, All tab doesn't have it too.

I was tried:
• to sell all overstocked materials, like Cloth, Leather and so on, to get enough free weight in my inventory, like 203/250;
• to equip/unequip daggers in all R slots, guessing about bug when unused bombs from Prologue still counts as equipped;
• to craft other items, like potions by myself, gear by vendor — all fine, except theese HELL YEAH bombs;
• reloading my game to different stages of Chapter 1, quitting game and starting it back — no hint;
• Meditating different parts of time, thinking of some daytime glitch.

NO CLUES AT ALL!

Please, if someone has solved this very annoying moment of game — let me know! I can't play normally this game, thinking of not using all my possibilities. Damn, Witcher 2 is frozen for now, till some patch or solution comes out.

I solved this bug for me, finally. I approve there is a huge bug with "forgiven items".

To be able make Samums in Chapter 1 (at least, didn't test it further yet) — don't equip anything and don't use anything in Prologue, except of Signs. You freely can use your magic, but forget about traps and bombs. Don't equip them, don't use them, and you will be able to craft and equip after Prologue.

So, I have restarted my game from the beginning, using only Signs for battles, and just now crafted pack of bombs for myself. We'll see later, maybe it is not end :)

I came across this problem as well, but eventually it went away

Yeah, there are bugs with some crafted items. They' disappear after the blacksmith crafted them. Mine with kadewein sword(not sure how it's spelled). Hope they fix it in the next patch.

Other "solution" is appeared on Steam forums:

"What's happening is the 5 tutorial bombs are getting "stuck" in an invisible pocket; when you do Fight Club, the game takes away all your bombs/traps/weapons and that includes those stuck bombs. When you reclaim your inventory later, it's fixed and you've got however many you crafted, +5 from the tutorial, in your inventory and usable again.

Just ignore the bug and continue on, no need to restart / revert."

(c) by phaz0r