Why is a Level 50 culinarian failing Quick synthing maple surger?

[FJerome]

first off, i wanna ask same thing, but different situation, hempen yarn as a 50 weaver with careful synthesis 2 and full hq af gear fail 10% of the time

second, i wanna add in, for this game, we do not call it the RNG, but rather the RFG (random f***you generator).....or maybe its just me that feels this way
i make that statement based on hq success, not the quick synth that i knew was bad for success rates

. . . As a level 50 Weaver why are you even trying to HQ hempen yarn? It's just a waste of a lightning shard since you can HQ anything at that tier with NQ mats and you can just buy those from a vendor.