Carbon driver not been ported to 64bits . few parts of Windows.Forms will work properly, or at all

I'm getting a runtime crash in debug target with everything at the latest version from the stable channel. I get the following error and stack trace:

WARNING: The Carbon driver has not been ported to 64bits, and very few parts of Windows.Forms will work properly, or at all

Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Windows.Forms.XplatUICarbon.CGDisplayBounds (intptr) [0x00009] in <6673d7101e044ca5890b94a28ed667e8>:0
  at System.Windows.Forms.XplatUICarbon.get_WorkingArea () [0x00000] in /private/tmp/source-mono-2017-02/bockbuild-2017-02/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Windows.Forms/System.Windows.Forms/XplatUICarbon.cs:2263
  at System.Windows.Forms.XplatUICarbon.get_VirtualScreen () [0x00000] in /private/tmp/source-mono-2017-02/bockbuild-2017-02/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Windows.Forms/System.Windows.Forms/XplatUICarbon.cs:2257
  at System.Windows.Forms.XplatUI.get_VirtualScreen () [0x00000] in /private/tmp/source-mono-2017-02/bockbuild-2017-02/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Windows.Forms/System.Windows.Forms/XplatUI.cs:420
  at System.Windows.Forms.Screen..cctor () [0x00034] in /private/tmp/source-mono-2017-02/bockbuild-2017-02/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Windows.Forms/System.Windows.Forms/Screen.cs:53
  at (wrapper runtime-invoke) object.runtime_invoke_void (object,intptr,intptr,intptr) [0x0001f] in <fcc8a7c6b1e64f94993a28ac946018c9>:0
  at <unknown> <0xffffffff>
  at Xamarin.InsightsCore.PlatformServices.GetDeviceInfoData () [0x00099] in <5bd4c2e41bde4ff38360dbeacb7c0a84>:0
  at Xamarin.InsightsCore.MessageProcessor.SubmitDeviceInfo () [0x0001a] in <5bd4c2e41bde4ff38360dbeacb7c0a84>:0
  at Xamarin.InsightsCore.Core.<Initialize>b__19_1 (System.Threading.Tasks.Task) [0x00010] in <5bd4c2e41bde4ff38360dbeacb7c0a84>:0
  at System.Threading.Tasks.ContinuationTaskFromTask.InnerInvoke () [0x00024] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/Tasks/TaskContinuation.cs:63
  at System.Threading.Tasks.Task.Execute () [0x00010] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/Tasks/Task.cs:2502
  at System.Threading.Tasks.Task.ExecutionContextCallback (object) [0x00006] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/Tasks/Task.cs:2865
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) [0x00071] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/executioncontext.cs:957
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/executioncontext.cs:904
  at System.Threading.Tasks.Task.ExecuteWithThreadLocal (System.Threading.Tasks.Task&) [0x00050] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/Tasks/Task.cs:2827
  at System.Threading.Tasks.Task.ExecuteEntry (bool) [0x00058] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/Tasks/Task.cs:2760
  at System.Threading.Tasks.Task.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () [0x00000] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/Tasks/Task.cs:2707
  at System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00074] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/threadpool.cs:856
  at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x0001c] in /Library/Frameworks/Xamarin.Mac.framework/Versions/3.4.0.36/src/mono/mcs/class/referencesource/mscorlib/system/threading/threadpool.cs:1211
  at (wrapper runtime-invoke) <Module>.runtime_invoke_bool (object,intptr,intptr,intptr) [0x0001f] in <fcc8a7c6b1e64f94993a28ac946018c9>:0

It seems to be caused by Xamarin Insights, although that could be a red herring, if I disable this line in my Main.cs class it goes away...

Xamarin.Insights.Initialize(insightsKey, "1.15.2.0", "MAC");

Any help would be really appreciated!