Is PolicyRecordingBot recieve audio from guest participant?

@1fabi0 @ssulzer @zihzhan
There is weird things happened if one of participant is guest. For example:

User A and B in organization where bot deployed.
User C not in organization (connect to call as guest).

Call 1.
User A and B - expected behaviour

Call 2.
User A and C - no audio, worker role reboot in unexpected moment, and bot clear all logs

Logs
All what i have is this exception

Exception processing HTTP request.
exception: Error while copying content to a stream.

The I/O operation has been aborted because of either a thread exit or an application request
StackTrace:    at System.Net.HttpResponseStream.EndWrite(IAsyncResult asyncResult)
   at System.IO.Stream.<>c.<BeginEndWriteAsync>b__53_1(Stream stream, IAsyncResult asyncResult)
   at System.Threading.Tasks.TaskFactory1.FromAsyncTrimPromise1.Complete(TInstance thisRef, Func3 endMethod, IAsyncResult asyncResult, Boolean requiresSynchronization)
--- 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 Microsoft.Owin.Host.HttpListener.RequestProcessing.ExceptionFilterStream.<WriteAsync>d__36.MoveNext()

Is someone know, there is oportunity to record guest user audio? Is this is application error or platform restrictions

Start with the PolicyRecordingBot behavior described for calls containing a guest participant, comparing the working A+B call with the failing A+C call. Review the supplied OWIN HttpListener exception and recording logs while reproducing the failure. Done means establishing whether guest audio recording is supported and whether the reboot and log loss come from the application or a platform restriction.