在苹果审核中会出现
Guideline 2.1 - Performance - App Completeness
We discovered one or more bugs in your app when reviewed on iPad running iOS 13.5.1 on Wi-Fi.
Specifically, the app loads indefinitely at the login page.
Next Steps
To resolve this issue, please run your app on a device to identify any issues, then revise and resubmit your app for review.
If we misunderstood the intended behavior of your app, please reply to this message in Resolution Center to provide information on how these features were intended to work.
For new apps, uninstall all previous versions of your app from a device, then install and follow the steps to reproduce the issue. For updates, install the new version as an update to the previous version, then follow the steps to reproduce the issue.
这种莫名其妙的问题，我们在本地测试时并没有发现有任何问题。
这时候可以考虑是否IPV6未适配导致的。
若无法适配IPV6 可以回复审核人员我们只支持IPV4 亲测可用！
Dear team,
Thanks for your feedback!
We tested this bug and found that it is impossible to request data in the Wi-Fi environment of IPV6, but it is possible in the Wi-Fi environment of IPV4.
In China, we usually use the IPV4 network environment, and our server also sends data through the IPV4 network. In order to upgrade the server through auditing, it takes a lot of time and money. Our application is only sold in China, could you test with the IPV4 network environment? I believe that these bugs will not appear, thx!
Best Wishes.