KeyNotFoundException: The given key was not present in the dictionary When importing VRM into game

[HobdayJ]

Environments:

• UniVRM version: 0.128.0
• UniVRM version: 0.112.0
• UniVRM version: 0.104.1
• Unity version: Unity-2021.3.16f
• OS: Windows 10

The bug

I've trying to use a mod for a game called Raft using RAFTVRM to get my vrm model into the game, but I've been getting a repeated error when the mod loads. I'm fairly certain it's related to my model, as I've tried other models and they work fine. I've tried different UniVRM versions but haven't had any success

The Error

I've been getting this error every frame in the console.

(KeyNotFoundException: The given key was not present in the dictionary.
System.Collections.Generic.Dictionary'2[TKey, TValue].get_item (TKey key) (at 437ba245d8404784b9fbab9b439ac908>:0
PlayerAnimSync.Update () (at :0)
NullReferenceException: Object reference not set to an instance of an object
PlayerAnimSync.LateUpdate () (at :0))

My model looks like this.

I've fixed any shader issues I've had previously, but no animations.

here is the VRM1.0 that I've been using
Anput_0.12.zip

I've messaged the yoship1639 (the mod author) regarding this issue but no response, and I think it might be related to the model or exporting it from unity.
Any help would be very appreciated!

[HobdayJ]

NullReferenceException: Object reference not set to an instance of an object
PlayerAnimSync+d__9.MoveNext () (at <71b8a9d6c5bd439baf5c7131e9c8d66d>:0)
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__6_0 (System.Object state) (at <437ba245d8404784b9fbab9b439ac908>:0)
UnityEngine.UnitySynchronizationContext+WorkRequest.Invoke () (at <0618f269b594493b97c56ba78f03373a>:0)
UnityEngine.UnitySynchronizationContext:ExecuteTasks()

Getting this error now after some version changing