User field stopped showing in GraphQL query

Describe the bug
User field type stopped surfacing populated values to GraphQL

To Reproduce
Steps to reproduce the behavior:

1. Add a User Field Type to a Field Group that appears on Posts
2. In a post, add a user to the field and save
3. Refresh and see that the user is visibly saved to the field
4. Go to GraphQL IDE and query for the field group + user field on the post
5. See that the query returns null or empty [] array

Expected behavior
The saved user value should show in the GraphQL query and not just the post editing interface

Screenshots or Video
https://www.loom.com/share/4af11b22f39745909505d3635c1b0750?sid=c1e06f9d-f83d-4e62-97ec-f92e51577e84

Code
acf-export-2024-06-11.json

Version Information:

• WPEngine hosted [PAID]
• WordPress Version [6.4.3]
• PHP Version [8.0.2]
• ACF Version [ACF Free 6.3.1]
• WPGraphQL for ACF [2.2.0]
• WPGraphQL [1.27.0]
• Browser [Chrome 125.0.6422.142]

Additional context
This was working about a week ago? Sometime, roughly in the past 2 weeks, it stopped on all authors but one. One user comes through to the query—the rest don't. All plugins above were updated to latest today.

Start with the attached acf-export-2024-06-11.json and reproduce the User Field Type on a post, then query the field group and user field in the GraphQL IDE. Compare the saved value in the post editing interface with the returned null or empty array; done means all saved users are returned by the GraphQL query.