Advanced Melding forbidden after the last update

[Leandro_RPG]

You can't meld Main Stats, like strength, into forbidden slots.

Thanks Rawrz, that explain the reason, I didn't knew that, since I had pentameld my WHM with spellspeed, determination, Piety and a few Critical Hit, started pentameld my SMN with mass Critical Hit and Direct Hit, I was trying put Strenght on accessories of my PLD, my main role in every mmorpg is Healer, only play as healer cause I love healing even if peoples blame me for a fail in some part.
I don't play tank rules and don't know which stats looks better instead of vitality for High amount of HP, and since all gears have vitality maxed, I was trying a secondary stat like Strenght and tenacity, but 99% os the places, forums and reddit I checked for tenacity they said to avoid, well, since the rest of my strengt V is useless for me now, i will sell it on the market.