Missing Damage: Ice Trap + Slavedriver's Hand + Frost Walker (% inc cast speed with cold skills)

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• I'm running the latest version of Path of Building and I've verified this by checking the changelog

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What is the value from the calculation in-game?

Ice Trap is a cold trap skill.
Slavedriver's makes trap skills enjoy Cast Speed as Trap Throwing Speed.
Frost Walker gives increased cast speed with cold skills.

Therefore Frost Walker's cast speed should be reflected in Ice Trap's DPS when using Slavedriver's.

Note that I have checked the tooltip cast time in-game and it does go down when taking Frost Walker.

What is the value from the calculation in Path of Building?

In POB, the cast speed is not factored in. It seems POB is not coded for Slavedriver's use with "specific" cast speed mods. Generic cast speed mods do work.

How to reproduce the issue

Ice Trap main skill, equip slavedriver's hand, hover over Frost Walker. Remove slavedriver's hand, hover, damage hasn't changed.

Character build code

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Screenshots

see generic cast speed reflected in trap speed:

see specific cast speed not reflected in trap speed:

Start by importing the supplied character build code and reproducing the Ice Trap DPS comparison with and without Slavedriver's Hand and Frost Walker. Trace the calculation path for generic versus specific cast-speed modifiers; done means Frost Walker's cold-skill cast speed changes Ice Trap DPS when Slavedriver's Hand is equipped, without changing the generic cast-speed behavior.