Is this normal?

[Snugglebutt]

There is a chance, though I do not know what it is, that you will automatically regain everything you used if you fail the craft. The skill Reclaim bumps that chance up considerably, though not to 100% unfortunately. The base chance seems to be based inversely with recipe level though - at lower levels you have a greater chance of recovering the materials than at higher levels.

I guess I just got lucky then. It is the first time ever occurred even though have failed to craft things hundreds of times in the past throughout the multiple years playing. Lucky for me was during crafting of ilvl190 DoH HQ piece when did finally happen I suppose, I got distracted and miscalculated the final step of it by like less than 10 points out of the 1764 needed to succeed. I never realized such a thing existed outside of reclaim which I thought was the only way to retain materials.