(lldb) bt all
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0x00007fff5f010f32 libsystem_kernel.dylib`__semwait_signal + 10
    frame #1: 0x00007fff5ef9c914 libsystem_c.dylib`nanosleep + 199
    frame #2: 0x00007fff5c10ddc4 libc++.1.dylib`std::__1::this_thread::sleep_for(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > const&) + 73
    frame #3: 0x00000001003f5eda openttd`QZ_GameLoop() + 3450
    frame #4: 0x00000001003f140b openttd`-[OTTDMain launchGameEngine:] + 43
    frame #5: 0x00007fff32fe1b96 CoreFoundation`__CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
    frame #6: 0x00007fff32fe1b10 CoreFoundation`___CFXRegistrationPost_block_invoke + 63
    frame #7: 0x00007fff32fe1a7a CoreFoundation`_CFXRegistrationPost + 404
    frame #8: 0x00007fff32fe9f28 CoreFoundation`___CFXNotificationPost_block_invoke + 87
    frame #9: 0x00007fff32f528b4 CoreFoundation`-[_CFXNotificationRegistrar find:object:observer:enumerator:] + 1642
    frame #10: 0x00007fff32f51c67 CoreFoundation`_CFXNotificationPost + 732
    frame #11: 0x00007fff351d7aab Foundation`-[NSNotificationCenter postNotificationName:object:userInfo:] + 66
    frame #12: 0x00007fff32fe1b96 CoreFoundation`__CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
    frame #13: 0x00007fff32fe1b10 CoreFoundation`___CFXRegistrationPost_block_invoke + 63
    frame #14: 0x00007fff32fe1a7a CoreFoundation`_CFXRegistrationPost + 404
    frame #15: 0x00007fff32fe9f28 CoreFoundation`___CFXNotificationPost_block_invoke + 87
    frame #16: 0x00007fff32f528b4 CoreFoundation`-[_CFXNotificationRegistrar find:object:observer:enumerator:] + 1642
    frame #17: 0x00007fff32f51c67 CoreFoundation`_CFXNotificationPost + 732
    frame #18: 0x00007fff351d7aab Foundation`-[NSNotificationCenter postNotificationName:object:userInfo:] + 66
    frame #19: 0x00007fff3057bfc4 AppKit`-[NSApplication _postDidFinishNotification] + 312
    frame #20: 0x00007fff3057b917 AppKit`-[NSApplication _sendFinishLaunchingNotification] + 208
    frame #21: 0x00007fff30579a6b AppKit`-[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] + 552
    frame #22: 0x00007fff305796bb AppKit`-[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 688
    frame #23: 0x00007fff35221700 Foundation`-[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 286
    frame #24: 0x00007fff3522157d Foundation`_NSAppleEventManagerGenericHandler + 102
    frame #25: 0x00007fff341a3397 AE`aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) + 1815
    frame #26: 0x00007fff341a2c29 AE`dispatchEventAndSendReply(AEDesc const*, AEDesc*) + 41
    frame #27: 0x00007fff341a2b01 AE`aeProcessAppleEvent + 414
    frame #28: 0x00007fff321e68b7 HIToolbox`AEProcessAppleEvent + 54
    frame #29: 0x00007fff30575abd AppKit`_DPSNextEvent + 1935
    frame #30: 0x00007fff3057448b AppKit`-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361
    frame #31: 0x00007fff3056e5a8 AppKit`-[NSApplication run] + 699
    frame #32: 0x00000001002151bb openttd`openttd_main(int, char**) + 5483
    frame #33: 0x00000001002288a7 openttd`main + 151
    frame #34: 0x00007fff5eed83d5 libdyld.dylib`start + 1
  thread #6, name = 'com.apple.audio.IOThread.client'
    frame #0: 0x00007fff5f00d22a libsystem_kernel.dylib`mach_msg_trap + 10
    frame #1: 0x00007fff5f00d76c libsystem_kernel.dylib`mach_msg + 60
    frame #2: 0x00007fff329eeeda CoreAudio`HALB_MachPort::SendMessageWithReply(unsigned int, unsigned int, unsigned int, unsigned int, mach_msg_header_t*, bool, unsigned int) + 122
    frame #3: 0x00007fff329eee4f CoreAudio`HALB_MachPort::SendSimpleMessageWithSimpleReply(unsigned int, unsigned int, int, int&, bool, unsigned int) + 45
    frame #4: 0x00007fff329eb39f CoreAudio`HALC_ProxyIOContext::IOWorkLoop() + 1017
    frame #5: 0x00007fff329eadf4 CoreAudio`HALC_ProxyIOContext::IOThreadEntry(void*) + 122
    frame #6: 0x00007fff329ea956 CoreAudio`HALB_IOThread::Entry(void*) + 72
    frame #7: 0x00007fff5f0cc2eb libsystem_pthread.dylib`_pthread_body + 126
    frame #8: 0x00007fff5f0cf249 libsystem_pthread.dylib`_pthread_start + 66
    frame #9: 0x00007fff5f0cb40d libsystem_pthread.dylib`thread_start + 13
  thread #9
    frame #0: 0x00007fff5f00ebfe libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fff5f0cb636 libsystem_pthread.dylib`_pthread_wqthread + 458
    frame #2: 0x00007fff5f0cb3fd libsystem_pthread.dylib`start_wqthread + 13
  thread #10
    frame #0: 0x00007fff5f00ebfe libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0x00007fff5f0cb636 libsystem_pthread.dylib`_pthread_wqthread + 458
    frame #2: 0x00007fff5f0cb3fd libsystem_pthread.dylib`start_wqthread + 13
  thread #12, name = 'com.apple.NSEventThread'
    frame #0: 0x00007fff5f00d22a libsystem_kernel.dylib`mach_msg_trap + 10
    frame #1: 0x00007fff5f00d76c libsystem_kernel.dylib`mach_msg + 60
    frame #2: 0x00007fff32f7f1ee CoreFoundation`__CFRunLoopServiceMachPort + 328
    frame #3: 0x00007fff32f7e75c CoreFoundation`__CFRunLoopRun + 1612
    frame #4: 0x00007fff32f7debe CoreFoundation`CFRunLoopRunSpecific + 455
    frame #5: 0x00007fff3057d4c2 AppKit`_NSEventThread + 175
    frame #6: 0x00007fff5f0cc2eb libsystem_pthread.dylib`_pthread_body + 126
    frame #7: 0x00007fff5f0cf249 libsystem_pthread.dylib`_pthread_start + 66
    frame #8: 0x00007fff5f0cb40d libsystem_pthread.dylib`thread_start + 13