Update Manager through SCIM does not work.

Hi.

I'm running Identity Manger 9.1.

When creating a new user, Manager gets inserted. But when updating a Manager, nothing happens. I've enabled Trace to find out more and the log says that the op is Remove and seen below.

2023-03-20 13:32:21.7721 TRACE (SystemConnector SCIM-BCBF30 Job dc147a1f-19f1-4c4a-a54b-c7809c05cd35) : 		Target:"SCIM" Method:"OnCommitObject" Number:"2550101" Message:"Method OnCommitObject called." 
2023-03-20 13:32:21.8190 DEBUG (SystemConnector SCIM-BCBF30 Job dc147a1f-19f1-4c4a-a54b-c7809c05cd35) : 		Target:"SCIM" Method:"Send" Number:"2550121" Message:"Sending PATCH request using URI https://services.acme.com/api/scim/v2/Users/f0ca13ff-070c-4b21-a2f4-be51e5aa1413" 
2023-03-20 13:32:21.8347 DEBUG (SystemConnector SCIM-BCBF30 Job dc147a1f-19f1-4c4a-a54b-c7809c05cd35) : 		Target:"SCIM" Method:"Send" Number:"2550122" Message:"Sending data {
  "schemas": [
    "urn:ietf:params:scim:api:messages:2.0:PatchOp"
  ],
  "Operations": [
    {
      "op": "replace",
      "value": {
        "locale": "sv_SE"
      }
    },
    {
      "op": "replace",
      "value": {
        "preferredLanguage": "sv-SE"
      }
    },
    {
      "op": "remove",
      "path": "urn:ietf:params:scim:schemas:extension:enterprise:2.0:User~manager"
    }
  ]
}"

This is what the Sync log looks like:

Sequence number Schema type   Object                                                                                  Processing method     Schema property   Value new (long)
6               User          CN=f0ca13ff-070c-4b21-a2f4-be51e5aa1413,O=User,DC=https://services.acme.com/api/scim/v2 Update                locale            sv_SE
6               User          CN=f0ca13ff-070c-4b21-a2f4-be51e5aa1413,O=User,DC=https://services.acme.com/api/scim/v2 Update                preferredLanguage sv-SE
6               User          CN=f0ca13ff-070c-4b21-a2f4-be51e5aa1413,O=User,DC=https://services.acme.com/api/scim/v2 Update                urn:ietf:params:scim:schemas:extension:enterprise:2.0:User~manager~value  963aa740-d8c8-41d3-ac7a-160a8712e27f

Any help is appreciated!

/Henrik