Can not add Connect user to tester… | Apple Developer Forums

Can not add Connect user to tester list

When I wang to add user in my Connect list to my TF tester list.
I always get an error.
And I try to remove a tester from the list, and i can add him back. And get the error too.

I got some info from the web checker in Safari:

Code Block languageObject
appName: "testflight"
env: "PROD"
eventKit: "logger"
payload: Array (1)
0 Object
logLevel: "ERROR"
message: "API Response Error: TF_CREATE_ASSIGN_TESTERS_RESPONSE"
stackTrace: "status code: 500 --- api correlation key: CIVXA3FMASDFMJGUFXMJLJQ3KY"
url: "https://appstoreconnect.apple.com/apps/1498426607/testflight/users"

Code Block language
Object

appName: "testflight"

env: "PROD"

eventKit: "logger"

payload: Array (1)
0 Object

logLevel: "ERROR"

message: "API Response Error: TF_CREATE_ASSIGN_TESTERS_RESPONSE"

stackTrace: "status code: 500 --- api correlation key: CIVXA3FMASDFMJGUFXMJLJQ3KY"

url: "https://appstoreconnect.apple.com/apps/1498426607/testflight/users"

Code Block language{
	"errors": [{
		"status": "500",
		"code": "UNEXPECTED_ERROR",
		"title": "An unexpected error occurred.",
		"detail": "An unexpected error occurred on the server side. If this issue continues, contact us at https://developer.apple.com/contact/."
	}]
}