Sourcetree randomly hangs. Oddly it seems to work OK when not maximised (although it has occasionally hung in windowed mode too). However, when maximised it seems to hang almost immediately. 

I have tried version 3.0.17 and this does not hang however the same exception as below is recorded in the log.

Everytime a hang occurs an exception is recorded in the sourcetree.log. 

ERROR [2019-04-16 11:59:11,673] [6] [SourceTree.Analytics.NPS.Service.NPSFeedbackService] [Log] - NPS: Couldn't record shown prompt
System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The remote name could not be resolved: 'sourcetree-nps-bridge.us-east-1.prod.public.atl-paas.net'
at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
— End of inner exception stack trace —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at SourceTree.Analytics.NPS.Transport.AuthHttpClientHandler.<SendAsync>d__2.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Net.Http.HttpClient.<FinishSendAsyncBuffered>d__58.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Refit.RequestBuilderImplementation.<>c_DisplayClass17_0.<<BuildVoidTaskFuncForMethod>b_0>d.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at SourceTree.Analytics.NPS.Service.NPSFeedbackService.<RecordShownPromptAsync>d__18.MoveNext()