Item won't transmute into strange scroll

I have Torchlight version 1.15. I made a Sushi Helm and was able to fish up Lefferts' Hands. However, it won't transmute into the Strange Scroll map. According to the Wiki, no other items are needed in order to make that scroll. Am I missing something ?
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I have one mod. It sets the enchantment chance to 100% success, and all items dropped from bosses are unique.
Do you have the name of the mod or at least the location where you downloaded the mod.
Torchlight 1 Class Pack (TL1CP) Mod for TL2: Steam | RGF