i get this exception running that sample
{"Error HRESULT E_FAIL has been returned from a call to a COM component."} in
SignatureUC.xaml.cs
public readonly InkManager InkManager = new InkManager();
Stacktrace:
at Windows.UI.Input.Inking.InkManager..ctor()
at SyncfusionPdfTests.Views.SignatureUC..ctor()
at SyncfusionPdfTests.SyncfusionPdfTests_XamlTypeInfo.XamlTypeInfoProvider.Activate_8_SignatureUC()
at SyncfusionPdfTests.SyncfusionPdfTests_XamlTypeInfo.XamlUserType.ActivateInstance()