Cannot create association definition with itself

[Developers]

Hi, not so long time ago I was able to create associations between to entries of the same custom object type. I was testing a functionality using it on my Sandbox account, and now that its time to implement this change I cannot do it on my Production account. Why I'm not able to create the association between two custom objects of the same type anymore? Is there a workaround?

I still have the associations types working on the Sandbox and I'm able to create new associations with it.

I'm trying to create it with :/crm/v3/schemas/{objectTypeId}/associations
example body: 

{
"fromObjectTypeId": "2-3444025",
"toObjectTypeId": "2-3444025",
"name": "project_to_project"
}

Response: 

{
"status": "error",
    "message": "Cannot create association definition with itself: 2-6286287",
    "correlationId": "0566b846-bc06-4a67-9955-50e2abf16480",
    "context": {
        "objectTypeId": [
            "2-6286287"
        ]
    },
    "category": "VALIDATION_ERROR",
    "subCategory": "ObjectSchemaError.CANNOT_ASSOCIATE_OBJECT_TYPE_WITH_ITSELF"
}

[MiaSrebrnjak]

Hi @Developers,

Thank you for reaching out to the Community! 

I wanted to tag in a couple of subject matter experts to see if they have any advice: 

hi @stefen & @louischausse, do you have any tips for @Developers? Thank you!

Cheers
Mia, Community team