appstoreconnect visibleApps randomly response wrong data

https://api.appstoreconnect.apple.com/v1/users/2a449234-15b3-4056-bd87-3cfe65711a52/visibleApps

when calling this api, it's response change randomly

calling 100 times,

somtime I got

{
  "data" : [ ],
  "links" : {
    "self" : "https://api.appstoreconnect.apple.com/v1/users/2a449234-15b3-4056-bd87-3cfe65711a52/visibleApps"
  },
  "meta" : {
    "paging" : {
      "total" : 0,
      "limit" : 50
    }
  }
}

somtime I got

{
  "data" : [ {
    "type" : "apps",
    "id" : "***",
    "attributes" : {
      "name" : "***",
      "bundleId" : "***",
...

and the data count also random

(no one edit the user role and visibleapps)

this occurred after 2023/08/17 08:40 (GMT+8)

I wonder if it's caused by api met error and return the incomplete data array back?

for example, user A has 3 visible apps and

app1  <-- fail here

then return  "data" : [ ]

app1
app2
app3  <-- fail here

then return  "data" : [ {app1 detail}, {app2 detail}]