Fossil craft a shield problem

Hi, one question about crafting a shield with fossils. I want to craft a shield with Recover (3-5)% of Life when you Block stat. I checked in www.craftofexile.com what would be the most optimal combination of 3 fossils to craft such shield (I choose as base Pinnacle Tower Shield). The calculation showed Corroded + Opulent + Pristine as one of the two most optimal combinations with average tries = 3. Then I tried to emulate this shield in craftofexile -> Emulator, selected Pinnacle Tower Shield iLvl 68 (as this is the minimal iLvl requirement for this modifier) and started crafting with the beforementioned fossil combination. For my surprise, I made more than 50 tries and non of them produced this modifier, which surprised me. I even tried with iLvl = 83 just to be sure this is not the problem, and the result was the same. So am I doing something wrong, or the emulator is maybe bugged?

P.S. I want to verify that I am reading this correct before start spamming fossils in the game.

Did you give shaper influence to the shield?

Hmm, no, Didn't know that this should be done. After I gave it, I had a success on the first try. Thanks for the tip.

So I suppose in the game I should have a shield with this influence in order to get this modifier, not with just any shield?

Sorry for the beginner question but I started playing this game a couple of months ago for the first time and slowly building knowledge.

Yes you need to have this influence for the mod to be able to roll

Thanks, appreciate your help