unmodified sample crashes

[ghost]

Crashes on iPhone 10

1. downloaded Quick.Xamarin.BLE-master.zip
2. Set BLE.TEST.iOS as startup proj
3. Clicked BLE.TEST.iOS > Debug > START
   Crashes.

Built with Visual Studio on Windows 10, which uses MacBook

See crash log below..........
[HotReload] (2020-09-01 12:14:20.5): WARN: (BLE_TEST.iOS) Hot Reload disabled due to incompatible Xamarin.Forms version
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Mono.Security.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.Core.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.Numerics.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.Drawing.Common.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Xamarin.iOS.dll [External]
Thread started: #2
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.Xml.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Xamarin.Forms.Platform.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Xamarin.Forms.Core.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.Net.Http.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.ServiceModel.Internals.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/System.Runtime.Serialization.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Xamarin.Forms.Platform.iOS.dll
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Quick.Xamarin.BLE.Abstractions.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Quick.Xamarin.BLE.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/Xamarin.Forms.Xaml.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/BLE_TEST.dll
Loaded assembly: /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/BLE_TEST.iOS.exe

=================================================================
Native Crash Reporting

=================================================================
Got a abrt while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.

=================================================================
Native stacktrace:

0x105a5ad10 - /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/BLE_TEST.iOS : 
0x105a519ac - /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/BLE_TEST.iOS : 
0x105a5a25c - /private/var/containers/Bundle/Application/507A525C-08EC-4064-9DE3-BD4688F11842/BLE_TEST.iOS.app/BLE_TEST.iOS : 
0x1bff42894 - /usr/lib/system/libsystem_platform.dylib : <redacted>
0x1c0031e58 - /usr/lib/system/libsystem_kernel.dylib : <redacted>
0x1c0031e88 - /usr/lib/system/libsystem_kernel.dylib : <redacte

fd 03 00 91 b4 80 ff 97 ...T.{..........
0x1c002d804 bf 03 00 91 fd 7b c1 a8 c0 03 5f d6 c0 03 5f d6 .....{........
0x1c002d814 d0 03 80 d2 01 10 00 d4 e3 00 00 54 fd 7b bf a9 ...........T.{..

d>
0x1c649ec8c - /System/Library/PrivateFrameworks/TCC.framework/TCC :
0x1c649ebcc - /System/Library/PrivateFrameworks/TCC.framework/TCC :
0x1c64a2b00 - /System/Library/PrivateFrameworks/TCC.framework/TCC :
0x1bfe0cb1c - /usr/lib/system/libxpc.dylib :
0x1bfe013e8 - /usr/lib/system/libxpc.dylib :
0x1bfeff5a4 - /usr/lib/system/libdispatch.dylib :
0x1bfed60f8 - /usr/lib/system/libdispatch.dylib :
0x1bfee61c0 - /usr/lib/system/libdispatch.dylib :
0x1bff50bac - /usr/lib/system/libsystem_pthread.dylib : _pthread_wqthread
0x1bff53740 - /usr/lib/system/libsystem_pthread.dylib : start_wqthread

=================================================================
Basic Fault Address Reporting

Memory around native instruction pointer (0x1c002d7f4):0x1c002d7e4 c0 03 5f d6 c0 03 5f d6 30 41 80 d2 01 10 00 d4 ......0A......
0x1c002d7f4 e3 00 00 54 fd 7b bf a9The app has been terminated.

The app has been terminated.