iTCG item failure

Someone told me that certain iTCG items have a failure chance when crafting them (as in you lose all the materials and get no item).
After about 15 different searches I found no evidence to support his point. So can you fail an iTCG item craft? thanks.

I've made set 1, 2, and 3 items just fine. Nothing was destroyed, etc. I think you're thinking of the newer sets.

I've made set 1, 2, and 3 items just fine. Nothing was destroyed, etc. I think you're thinking of the newer sets.

I'm not thinking of anything, this is what someone tried to tell me. Thank you very much for your input.

set 5 iTCG upgrading has a chance of failure. The NPC Adonis even says so =P

I suspect that the Crystal Blade has a high failure rate though o.O

Set 5 forges sometimes dont work. you get a nifty 150k for your really expensive materials and your super rare zak diamond tho!

/end sarcasm

The basic items can't come out failed. However, if you try to upgrade Stirgeman items, they may get destroyed, and the same applies to those from Set 5 through Adonis. I think this was a horrible move on Nexon's part, the odds of getting a worthwhile item are quite low, and the quality of the items in set 3-5 have gone down considerably. This readily explains why these sets have been far less prevalent than the first 2, and seemingly why they sell less.