Crashed: com.apple.network.connections EXC_BAD_ACCESS KERN_INVALID_ADDRESS from Crashlytics

Question

There's a crash from our Firebase Crashlytics dashboard that I cannot replicate no matter what and I'm quite cluless. The stacktrace that I have does not specify where it happens specifically:

The logs & breadcrumbs as well are not that helpful since it does not show a common pattern.

Right now what I'm trying is to check the leaks through Instruments. What could be the reason for this crash? Or what are the ways to easily debug this?