eas submit to ios app freezing at lunching screen

i am able to submit the ios app to apple app store by using eas submit command.
but the app is freezing at launching screen. it showing launching screen.
is any changes i need to do in eas.json and app.json.
this eas.json

{
    "cli": {
      "version": ">= 0.60.0"
    },
    "build": {
      "development": {
        "developmentClient": true,
        "distribution": "internal"
      },
      "preview": {
        "distribution": "internal",
        "android": {
          "buildType":"apk"
        }
      },
      "production": {
        "android": {
          "buildType":"apk"
        }
      }
    },
    "submit": {
      "production": {
        "ios":{
            "appleId":"xxxxxxxxxxx",
            "ascAppId":"xxxxxxxxxxx",
            "appleTeamId":"xxxxxxxxxxx"
        }
      }
    }
  }