See my above comments above. Above approach might fix your issue.
jaspreet708
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I also observed the same and it fixed the issue after I moved the API call to didFinishLaunching
please make sure to call UserDefaults only after - appDidFinishLaunching. If you still see the issue and are using UserDefaults.standard, then try creating a new instance of UserDefaults with your own suitename and use that instead of standard UserDefaults.