customerSegmentMembers 'after' argument returning errors

Retired Boards Appdev Graphql Basics And Troubleshooting
1

I am using GraphQL to get ‘pages’ of customers, using first:50 records, where the totalCount is clearly 216 records for this segment:

{
  "data": {
    "customerSegmentMembers": {
      "statistics": {
        "totalCount": 216
      },
      "edges": [
        {
          "node": {
            "id": "gid://shopify/CustomerSegmentMember/4334292296",
            "defaultEmailAddress": {
              "emailAddress": "xxxxx@gmail.com"
            }
          }
        },
        {
          "node": {
            "id": "gid://shopify/CustomerSegmentMember/5188404177",
            "defaultEmailAddress": {
              "emailAddress": "xxxxx@ymail.com"
            }
          }
        }, ....

and then trying to use ‘after:’ with the hardcoded endcursor value to get the next 50 records:

{
  customerSegmentMembers(first: 50, segmentId: "gid://shopify/Segment/361633153183", after: "AAAAAUkZuZEAABA0ZTU3NzZjNzBlOTI2M2Q2") {
    statistics {
      totalCount
    }
    edges {
      node {
        id
        defaultEmailAddress {
          emailAddress
        }
      }
    }
    pageInfo {
      hasNextPage
      hasPreviousPage
      endCursor
    }
  }
}

This returns this non-helpful message:

{
  "data": null,
  "errors": [
    {
      "message": "an error has occurred. trace_id=4e9a72794cb12c9e2386184077902766 in segmentMembers",
      "locations": [
        {
          "line": 2,
          "column": 3
        }
      ],
      "path": [
        "customerSegmentMembers"
      ]
    }
  ],
  "extensions": {
    "cost": {
      "requestedQueryCost": 202,
      "actualQueryCost": 2,
      "throttleStatus": {
        "maximumAvailable": 1000,
        "currentlyAvailable": 998,
        "restoreRate": 50
      }
    }
  }
}

Any ideas as to why the addition of the after: argument is causing an error. The internets were no help, as apparently this is too new. Thank you for any help!

2

Update: Today its working with 0 changes. Thank you to the Shopify gods for listening!