Unknownreported this bug
Summary
Items provided through MMOItems are recognized in a NPC's trades, but the exact same items are no longer recognized when used in AddTrade skills for the exact same mob.
Steps to reproduce
Create a trade for a Villager mob using MMOItems Use the same MMOItem in an AddTrade skill for this mob When trying to run that skill, you will get an error in console saying that the item could not be found.
Mob + Skill setup https://pastebin.com/sJdzGA6Y