Broken Grouping of crash events cause no thread has crashed true

[arnavgupta180]

Platform

macOS

Environment

Production

Installed

Swift Package Manager

Version

8.36

Xcode Version

15.4

Did it work on previous versions?

No response

Steps to Reproduce

No steps to repro, Issue happens randomly

Expected Result

All crash events groups should have similar report.

Actual Result

For the below group we have different stack traces for different events:
https://citrix-workspace.sentry.io/issues/5782612431/events/98609bd2abc448bc8b236e992924f953/?project=4507448592105472&query=error.unhandled%3Atrue%20is%3Aunresolved&referrer=next-event&sort=freq&statsPeriod=14d&stream_index=1

stack trace: 39a6d7eaff9040e2bee50fea7fa444a4
stack trace: 98609bd2abc448bc8b236e992924f953

Are you willing to submit a PR?

No response

[philipphofmann]

All these C++ Exceptions are grouped by the exception type, not the value. So you want that Sentry also includes the stacktrace for grouping? If yes, that totally makes sense, and we must investigate why that is and fix it.

[arnavgupta180]

yes, We want to group based on stack trace as well. There is another instance for different stack traces:

Sentry Group link: https://citrix-workspace.sentry.io/issues/5889315885/events/ff75ad4fc2234f1287833923c2d6cb[…]lved&referrer=next-event&statsPeriod=30d&stream_index=1

1 event id: ff75ad4fc2234f1287833923c2d6cbc1
2 event id: 39f312ee44db4ae1ab217ed8d7473957

[philipphofmann]

I found the reason why Sentry doesn't group it by stacktrace:
thread (ignored because does not contain exactly one crashing, one current or just one thread, instead contains 19 threads).
I checked the JSON payload of your event and can confirm that no thread has the property crashed set to true. We now need to identify what causes this, but I can't give you an ETA yet, when we will fix this.