We met many crashes like below on iOS 15, it seems multi-thread issue EXC_BAD_ACCESS.
We get the dataServiceIdentifier on different threads.
Does CTTelephonyNetworkInfo not thread-safe anymore from iOS 15?
0 libobjc.A.dylib _objc_retain
1 CoreTelephony -[CoreTelephonyClientMux cachedValueForSelector:]
2 CoreTelephony -[CoreTelephonyClient(Data) getCurrentDataServiceDescriptorSync:]
3 CoreTelephony -[CTTelephonyNetworkInfo dataServiceIdentifier]
Reduce network delays for your app
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