I've confirmed this crash. It's not paren match that is causing the crash, looks like a stack overflow while trying to tag this is as a C++ file. That line looks like a function definition signature to the tagging parser, so it's trying to parse it like one. This section of the parser is recursive, so after a couple hundred recursions, it fails. We are looking into a fix and solution.
If this isn't a real C++ file, then I'd suggest working in a different document mode like Plain Text for the time being. If you need color coding then you can set up a custom Language mode and set the lexer to use the CPP one. If this is supposed to be C++, then you are doing it wrong.

If it isn't C++, what exactly did you need from C++ document mode?