Build 255 breaks refactoring

It looks like the latest build, 255, breaks some critical refactoring functionality. I am no longer prompted to create a stub when calling a previously undefined method:

class Foo
{
Foo()
{
Bar();
}
}

I should get the nice red lightbulb with a dropdown offering to create a new method "Bar()". All I get now is the red lightbulb without any options.