Cannot initialize data from legs.

[Espelette]

Trying to sim my mage, it keeps popping up issues with my legs. I'm hoping to replace them before this even gets resolved, but here's the code simc gave me. My simulation works on my bf's computer, by the way, just not mine. I've uninstalled and reinstalled, imported through the addon and through battle.net, and also had my bf send me the completed sim file and I ran it through and it always gave me the same error.

SimulationCraft encountered an error!

• Category: Simulation runtime error
• Error: Initializing: Actor 'Espelette': Item 'alpaca_wool_leggings' Slot 'legs': Cannot initialize data

All options used for simulation:

### SimulationCraft 801-01 for World of Warcraft 8.0.1 bfa-BETA (wow build 26095) ###
### Using QT 5.10.1 with WebEngine ###

### Begin GUI options ###
item_db_source=local/bcpapi/wowhead/bfahead
target_error=0
iterations=0
default_world_lag=0.1
max_time=300
vary_combat_length=0.2
fight_style=Patchwerk
tmi_window_global=6
target_level+=3
target_race=Humanoid
optimal_raid=0
override.bloodlust=1
override.arcane_intellect=1
override.power_word_fortitude=1
override.battle_shout=1
override.bleeding=1
override.mortal_wounds=1
override.chaos_brand=1
override.mystic_touch=1
threads=8
process_priority=Low
statistics_level=1
### End GUI options ###
### Begin simulateText ###
mage="Espelette"
spec=frost
level=120
race=goblin
role=spell
position=back
professions=mining=150/enchanting=1
talents=1213123
optimal_raid=0

# Default consumables
potion=rising_death
flask=endless_fathoms
food=bountiful_captains_feast
augmentation=battle_scarred

# This default action priority list is automatically created based on your character.
# It is a attempt to provide you with a action list that is both simple and practicable,
# while resulting in a meaningful and good simulation. It may not result in the absolutely highest possible dps.
# Feel free to edit, adapt and improve it to your own needs.
# SimulationCraft is always looking for updates and improvements to the default action lists.

# Executed before combat begins. Accepts non-harmful actions only.
actions.precombat+=/arcane_intellect
actions.precombat+=/water_elemental
actions.precombat+=/snapshot_stats
actions.precombat+=/mirror_image
actions.precombat+=/frostbolt

# Executed every time the actor is available.
actions=counterspell
# If the mage has FoF after casting instant Flurry, we can delay the Ice Lance and use other high priority action, if available.
actions+=/ice_lance,if=prev_gcd.1.flurry&brain_freeze_active&!buff.fingers_of_frost.react
actions+=/call_action_list,name=cooldowns
# The target threshold isn't exact. Between 3-5 targets, the differences between the ST and AoE action lists are rather small. However, Freezing Rain prefers using AoE action list sooner as it benefits greatly from the high priority Blizzard action.
actions+=/call_action_list,name=aoe,if=active_enemies>3&talent.freezing_rain.enabled|active_enemies>4
actions+=/call_action_list,name=single

# With Freezing Rain, it's better to prioritize using Frozen Orb when both FO and Blizzard are off cooldown. Without Freezing Rain, the converse is true although the difference is miniscule until very high target counts.
actions.aoe=frozen_orb
actions.aoe+=/blizzard
actions.aoe+=/comet_storm
actions.aoe+=/ice_nova
# Simplified Flurry conditions from the ST action list. Since the mage is generating far less Brain Freeze charges, the exact condition here isn't all that important.
actions.aoe+=/flurry,if=prev_gcd.1.ebonbolt|buff.brain_freeze.react&(prev_gcd.1.frostbolt&(buff.icicles.stack<4|!talent.glacial_spike.enabled)|prev_gcd.1.glacial_spike)
actions.aoe+=/ice_lance,if=buff.fingers_of_frost.react
# The mage will generally be generating a lot of FoF charges when using the AoE action list. Trying to delay Ray of Frost until there are no FoF charges and no active Frozen Orbs would lead to it not being used at all.
actions.aoe+=/ray_of_frost
actions.aoe+=/ebonbolt
actions.aoe+=/glacial_spike
# Using Cone of Cold is mostly DPS neutral with the AoE target thresholds. It only becomes decent gain with roughly 7 or more targets.
actions.aoe+=/cone_of_cold
actions.aoe+=/frostbolt
actions.aoe+=/call_action_list,name=movement
actions.aoe+=/ice_lance

actions.cooldowns=/icy_veins
actions.cooldowns+=/mirror_image
actions.cooldowns+=/rune_of_power,if=time_to_die>10+cast_time&time_to_die<25
# With Glacial Spike, Rune of Power should be used right before the Glacial Spike combo (i.e. with 5 Icicles and a Brain Freeze). When Ebonbolt is off cooldown, Rune of Power can also be used just with 5 Icicles.
actions.cooldowns+=/rune_of_power,if=active_enemies=1&talent.glacial_spike.enabled&buff.icicles.stack=5&(buff.brain_freeze.react|talent.ebonbolt.enabled&cooldown.ebonbolt.remains<cast_time)
# Without Glacial Spike, Rune of Power should be used before any bigger cooldown (Frozen Orb, Ebonbolt, Comet Storm, Ray of Frost) or when Rune of Power is about to reach 2 charges.
actions.cooldowns+=/rune_of_power,if=active_enemies=1&!talent.glacial_spike.enabled&(prev_gcd.1.frozen_orb|talent.ebonbolt.enabled&cooldown.ebonbolt.remains<cast_time|talent.comet_storm.enabled&cooldown.comet_storm.remains<cast_time|talent.ray_of_frost.enabled&cooldown.ray_of_frost.remains<cast_time|charges_fractional>1.9)
# With 2 or more targets, use Rune of Power exclusively with Frozen Orb. This is the case even with Glacial Spike.
actions.cooldowns+=/rune_of_power,if=active_enemies>1&prev_gcd.1.frozen_orb
actions.cooldowns+=/use_items
actions.cooldowns+=/blood_fury
actions.cooldowns+=/berserking
actions.cooldowns+=/lights_judgment
actions.cooldowns+=/fireblood
actions.cooldowns+=/ancestral_call

actions.movement=blink,if=movement.distance>10
actions.movement+=/ice_floes,if=buff.ice_floes.down

# In some situations, you can shatter Ice Nova even after already casting Flurry and Ice Lance. Otherwise this action is used when the mage has FoF after casting Flurry, see above.
actions.single=ice_nova,if=cooldown.ice_nova.ready&debuff.winters_chill.up
# Without GS, the mage just tries to shatter as many Frostbolts and Ebonbolts as possible. Forcing shatter on Frostbolt is still a small gain, so is not caring about FoF. Ice Lance is too weak to warrant delaying Brain Freeze Flurry.
actions.single+=/flurry,if=!talent.glacial_spike.enabled&(prev_gcd.1.ebonbolt|buff.brain_freeze.react&prev_gcd.1.frostbolt)
# With GS, the mage only shatters Frostbolt that would put them at 1-3 Icicle stacks, Ebonbolt if it would waste Brain Freeze charge (i.e. when the mage starts casting Ebonbolt with Brain Freeze active) and of course Glacial Spike. Difference between shattering Frostbolt with 1-3 Icicles and 1-4 Icicles is small, but 1-3 tends to be better in more situations (the higher GS damage is, the more it leans towards 1-3).
actions.single+=/flurry,if=talent.glacial_spike.enabled&buff.brain_freeze.react&(prev_gcd.1.frostbolt&buff.icicles.stack<4|prev_gcd.1.glacial_spike|prev_gcd.1.ebonbolt)
actions.single+=/frozen_orb
# With Freezing Rain and at least 2 targets, Blizzard needs to be used with higher priority to make sure you can fit both instant Blizzards into a single Freezing Rain. Starting with three targets, Blizzard leaves the low priority filler role and is used on cooldown (and just making sure not to waste Brain Freeze charges) with or without Freezing Rain.
actions.single+=/blizzard,if=active_enemies>2|active_enemies>1&cast_time=0&buff.fingers_of_frost.react<2
# Trying to pool charges of FoF for anything isn't worth it. Use them as they come.
actions.single+=/ice_lance,if=buff.fingers_of_frost.react
actions.single+=/comet_storm
# Without GS, Ebonbolt is used on cooldown. With GS, Ebonbolt is only used to fill in the blank spots when fishing for a Brain Freeze proc, i.e. the mage reaches 5 Icicles but still doesn't have a Brain Freeze proc.
actions.single+=/ebonbolt,if=!talent.glacial_spike.enabled|buff.icicles.stack=5&!buff.brain_freeze.react
# Ray of Frost is used after all Fingers of Frost charges have been used and there isn't active Frozen Orb that could generate more. This is only a small gain against multiple targets, as Ray of Frost isn't too impactful.
actions.single+=/ray_of_frost,if=!action.frozen_orb.in_flight&ground_aoe.frozen_orb.remains=0
# Blizzard is used as low priority filler against 2 targets. When using Freezing Rain, it's a medium gain to use the instant Blizzard even against a single target, especially with low mastery.
actions.single+=/blizzard,if=cast_time=0|active_enemies>1
# Glacial Spike is used when there's a Brain Freeze proc active (i.e. only when it can be shattered). This is a small to medium gain in most situations. Low mastery leans towards using it when available. When using Splitting Ice and having another target nearby, it's slightly better to use GS when available, as the second target doesn't benefit from shattering the main target.
actions.single+=/glacial_spike,if=buff.brain_freeze.react|prev_gcd.1.ebonbolt|active_enemies>1&talent.splitting_ice.enabled
actions.single+=/ice_nova
actions.single+=/flurry,if=azerite.winters_reach.enabled&!buff.brain_freeze.react&buff.winters_reach.react
actions.single+=/frostbolt
actions.single+=/call_action_list,name=movement
actions.single+=/ice_lance

head=visage_of_the_ascended_prophet,id=160719,bonus_id=4823/1492/4786,azerite_powers=485/21
neck=heart_of_azeroth,id=158075,bonus_id=4936/4929/4930/1512,azerite_level=
shoulders=shadra_silk_mantle,id=157907,bonus_id=1532/5140,azerite_powers=481/30
back=drape_of_the_loyal_vassal,id=158375,bonus_id=4946/1527/4783
chest=sandspinner_vestments,id=157962,bonus_id=1532/5138,azerite_powers=196/22/15
shirt=tailored_initiates_shirt,id=89190
wrists=voidlashed_wristband,id=160617,bonus_id=4801/1462/4786
hands=honorbound_artificers_mitts,id=163428,bonus_id=5126/1562/4786
waist=cord_of_flowing_sands,id=161399,bonus_id=4798/1477/4786
legs=alpaca_wool_leggings,id=165236
feet=honorbound_artificers_sandals,id=163285,bonus_id=5126/4802/1567/4783
finger1=golden_empire_signet,id=158152,bonus_id=4803/1532/4786,enchant_id=5942
finger2=smugglers_cove_ring,id=158160,bonus_id=4803/1527/4784,enchant_id=5942
trinket1=dinobone_charm,id=158155,bonus_id=4803/1542/4784
trinket2=ignition_mages_fuse,id=159615,bonus_id=4779/40/1512/4786
main_hand=honorbound_war_staff,id=163872,bonus_id=5124/1532/4786,enchant_id=5949

# Gear Summary
# gear_ilvl=350.00
# gear_stamina=4947
# gear_intellect=3674
# gear_crit_rating=713
# gear_haste_rating=536
# gear_mastery_rating=855
# gear_versatility_rating=634
# gear_avoidance_rating=64
# gear_armor=933

### End simulateText ###
desired_targets=1
### Begin overrides ###
# User-specified persistent global and player parameters will be set here.

### End overrides ###
### Begin final options ###
### End final options ###
### END ###

[vituscze]

Looks like that's one of the items that was hotfixed into the game at some point.

bfa-dev does have that item in the local item db, so you might just be using an older version of simc? No idea what else could be causing this.