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I was testing the behavior of GhostDoc beta with some of the new features like tuples and a local function using C# 7 in a UWP app and encountered a problem where Visual Studio 2017 Enterprise ed. hangs after selecting "Document This" from the GhostDoc menu and brings up a notification that Visual Studio is Busy after a few seconds and then has to be killed with Task Manager. I will email a PDF with screen dumps to the Helpdesk. Let me know if further information is required.