Loopback Relations Query to update parent - loopbackjs

Question

long time lurker in the loopback posts. I'm finally getting around to implementing some CRUD stuff with relations but I'm having some issues.
I have a form model that has a hasMany relation with leverOnes
and levelOnes has a hasMany relation with levelTwos
the individual patches are working fine (for example, if I need to update a single levelOne), but I have a page where the client essentially updates a bunch of levelOnes and levelTwos for a single Form at the same time. I can't update the form with my relation directly.
the patch is taking place at /forms/{id} at the top level, and I am getting a 500 error because when I attempt to patch
"id": "acmeform1",
"name": "ACME Assessment",
"userId": "string",
"org": "Complaints Department",
"clientId": "user#acme.com",
"dueDate": "2022-03-25T18:25:55.734Z",
"readyForReview": true,
"workDriverOnes": [
{
"id": "21740e676035c083fc20004803e88380",
"name": "Governance and Culture",
"description": "Governance and Culture",
"formId": "acmeform1",
"workDriverTwos": [
{
"id": "21740e676035c083fc20004803e8925f",
"name": "Annual Compliance Plan",
"description": "Annual Compliance Plan",
"workDriverOneId": "21740e676035c083fc20004803e88380",
"unitsPerPeriod": 1,
"amount": 20,
"unitType": "Annually",
"ongoing": true,
"roles": [
{
"id": "36c5b6399e951d45a7179f10b1b2df28",
"demandAmount": 5,
"role": "VP - Grade 36 Manager",
"workDriverTwoId": "21740e676035c083fc20004803e8925f"
},
{
"id": "8b054a1cb5002b760d68695b29cf16f6",
"demandAmount": 10,
"role": "SVP - Director",
"workDriverTwoId": "21740e676035c083fc20004803e8925f"
},
{
"id": "b92d2ed082c108d76ee91887234c1b1e",
"demandAmount": 5,
"role": "VP - Grade 37 Manager",
"workDriverTwoId": "21740e676035c083fc20004803e8925f"
}
]
}
]
},
{
"id": "285deab3c703506ac7878327b06eb4bf",
"name": "Policy Governance",
"description": "Policy Governance",
"formId": "acmeform1",
"workDriverTwos": [
{
"id": "8403a66eab00b0de2d2131cfe8d51135",
"name": "Policies",
"description": "Policies",
"workDriverOneId": "285deab3c703506ac7878327b06eb4bf",
"unitsPerPeriod": 1,
"amount": 20,
"unitType": "# Policies",
"ongoing": true,
"roles": [
{
"id": "285deab3c703506ac7878327b06ed443",
"demandAmount": 6,
"role": "VP - Grade 36 Manager",
"workDriverTwoId": "8403a66eab00b0de2d2131cfe8d51135"
},
{
"id": "2e362351b4477cb26f61937a37db27cb",
"demandAmount": 6,
"role": "VP - Grade 37 Manager",
"workDriverTwoId": "8403a66eab00b0de2d2131cfe8d51135"
},
{
"id": "36c5b6399e951d45a7179f10b1b2e932",
"demandAmount": 6,
"role": "SVP - Director",
"workDriverTwoId": "8403a66eab00b0de2d2131cfe8d51135"
},
{
"id": "dd6a475d1ae8f76fc7e7835331a42ad5",
"demandAmount": 2,
"role": "VP - Grade 35 Manager",
"workDriverTwoId": "8403a66eab00b0de2d2131cfe8d51135"
}
]
}
]
},
{
"id": "dd6a475d1ae8f76fc7e7835331a411c6",
"name": "Monitoring",
"description": "Monitoring",
"formId": "acmeform1",
"workDriverTwos": [
{
"id": "dd6a475d1ae8f76fc7e7835331a445a5",
"name": "Monitoring Scripts and Monitoring Plan Development and Drafting",
"description": "Monitoring Scripts",
"workDriverOneId": "dd6a475d1ae8f76fc7e7835331a411c6",
"unitsPerPeriod": 3,
"amount": 1,
"unitType": "# Monitoring Reviews",
"ongoing": true,
"roles": [
{
"id": "36c5b6399e951d45a7179f10b1b2ff49",
"demandAmount": 0.3,
"role": "SVP - Director",
"workDriverTwoId": "dd6a475d1ae8f76fc7e7835331a445a5"
},
{
"id": "9bc41d8a3a9eb3a435d946d8049cc97a",
"demandAmount": 2.7,
"role": "VP - Grade 37 Manager",
"workDriverTwoId": "dd6a475d1ae8f76fc7e7835331a445a5"
}
]
}
]
}
]
}
It says that workDriverOnes is already a relation and I can't update it directly. Do I have to manually loop through my levelOnes and patch each one individually? Or can I batch update at the form level?