Crash feedback not visible in Xcode

I see a long list of crash feedback in App Store Connect, if I try to download them I just get feedback in JSON, no stack. Inside Xcode in Organizer I can only see few crashes. My Beta user installed app with TestFlight and have a lot of crashes. Why I can't get the to Xcode to analyze ?

In fact if I filter in Organizer by TestFlight I don't see any crashes !

Crash feedback not visible in Xcode
 
 
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