After updating the architecture to standard architectures (armv7, arm64) - $ (ARCHS_STANDARD), it still DOES NOT work if you used the frameworks in your application. I tried updating the internal framework (UIKit, UIMapKit, etc.) and the external (facebook, crashlytics, etc.) and it worked for me. It means that any infrastructure that is not upgraded to the 64-bit version will force the application to switch to 32-bit and, therefore, will not be successfully sent to the application store. Hope this helps!
Talib Shabbir Hussain
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