It doesn't crash, that's the moment you have to attach a debugger. But that only works if you have vs.net installed I think, as it should give a dialog to attach a debugger.
Anyway, the other way is to do the following:
- right before running the template, attach an empty vs.net instance to the llblgen pro designer, using control-alt-p inside vs.net
- run the templates using debug mode
- vs.net you attached will break at the breakpoint you set.