
When I run the code, I get this response:

However, when I check this record in the CRM, the Titular field has not been updated.
Context:
I need to unassign records from the MultiLookUp field and then reassign them. If I skip the first step, the CRM returns an error with code: DUPLICATE_LINKING_DATA.
Notes:
The API name "Titular" is correct.
This code works correctly for normal fields.
The code correctly updated the MultiLookUp field until March 10, 2023.