When I run my project, I get a crash in the iOS 14 simulator. All other simulators work fine. A colleague also reported the same issue on their machine using the same project, though I was unable to reproduce it in a minimal test case project.
I believe it's restricted to the simulator, though I don't have any iOS 14 devices to confirm that. I don't have any crash reports coming through from App Store Connect (though there aren't many iOS 14 devices in the wild).
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000
Exception Codes: 0x0000000000000001, 0x0000000000000000
VM Region Info: 0 is not in any region. Bytes before following region: 4343136256
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
--->
__TEXT 102df0000-103c68000 [ 14.5M] r-x/r-x SM=COW ...o.app/Occasio
Termination Reason: SIGNAL 11 Segmentation fault: 11
Terminating Process: exc handler [6210]
Triggered by Thread: 0
Kernel Triage:
VM - (arg = 0x0) pmap_enter retried due to resource shortage
VM - (arg = 0x0) pmap_enter retried due to resource shortage
VM - (arg = 0x0) pmap_enter retried due to resource shortage
VM - (arg = 0x0) pmap_enter retried due to resource shortage
VM - (arg = 0x0) pmap_enter retried due to resource shortage
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 ??? 0x0 ???
1 Occasio 0x1031e3d54 bugsnag::BugsnagPerformanceLibrary::calledAsEarlyAsPossible() + 16 (BugsnagPerformanceLibrary.mm:27)
2 dyld_sim 0x1050b9e3c ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) + 424
3 dyld_sim 0x1050ba204 ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) + 52
4 dyld_sim 0x1050b4ab4 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 448
5 dyld_sim 0x1050b2d18 ImageLoader::processInitializers(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 184
6 dyld_sim 0x1050b2de0 ImageLoader::runInitializers(ImageLoader::LinkContext const&, ImageLoader::InitializerTimingList&) + 92
7 dyld_sim 0x1050a6354 dyld::initializeMainExecutable() + 216
8 dyld_sim 0x1050aab98 dyld::_main(macho_header const*, unsigned long, int, char const**, char const**, char const**, unsigned long*) + 4076
9 dyld 0x104fb3d88 dyld4::prepareSim(dyld4::RuntimeState&, char const*) + 1328
10 dyld 0x104fb264c dyld4::prepare(dyld4::APIs&, dyld3::MachOAnalyzer const*) + 276
11 dyld 0x104fb1e18 start + 1964