We have reproduced the problem. The reason isn't corresponded to the communication with Visual Studio and deadlock can occur in other cases. The fix will be included in the next build. It will be available in a couple of days.
Bad news, it still hangs. It seems better than before, i.e. it doesn't happen as often as it used to. However it still hangs. I don't know what to suggest other than what I've already suggested.