Thank you for your feedback. Unfortunately, we introduced an issue with our latest internal build, which causes Visual Studio to freeze when an exception is thrown. This is already fixed and will be included in our next internal build, but meanwhile I would like to ask you to go back to the official Q3 release.
I also would like to note that the exception that is thrown and mentioned by LamKhoa HuyBao is not caused by JustCode. It also does not affect JustCode, it is only shown by it.
JustCode catches and shows all unhandled exceptions in Visual Studio even if they are not caused by it. We known that this is sometimes annoying and even makes JustCode looks broken and that is why we will do our best to filter the shown exceptions correctly so that JustCode will show only these thrown by it.
I am sorry for the caused inconvenience!
the Telerik team