I am trying to use update_field to update a flexible content field. It works ok and creates a new flexible content entry with the right layout as expected.
One of the fields in the flexible content entry I create is a post object field. The field is set to only allow a single post, not multiple. The field name is ‘measure’ and I am passing it a value of 65 (which is a valid post ID) but the field is not saved within the flexible content entry.