When starting ctrlX Drive V16

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************** Exception Text **************
System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at Tmds.MDns.NetworkInterfaceHandler.HandlePacketServiceInfos()
   at Tmds.MDns.NetworkInterfaceHandler.OnReceive(IAsyncResult ar)
   at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
   at System.Net.ContextAwareResult.CompleteCallback(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Net.ContextAwareResult.Complete(IntPtr userToken)
   at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
   at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4645.0 built by: NET48REL1LAST_B
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
cxde
    Assembly Version: 1.9.0.196
    Win32 Version: 1.9.0.196
    CodeBase: file:///C:/Program%20Files/Rexroth/ctrlX%20WORKS/cxde.exe
----------------------------------------
IndraWorks.Drive.ctrlXDRIVE
    Assembly Version: 1.9.0.196
    Win32 Version: 1.9.0.196
    CodeBase: file:///C:/Program%20Files/Rexroth/ctrlX%20WORKS/IndraWor