Inverse Chirp-Z bug or How to Use??

[mcduff]

Trying to use the Inverse Chirp-Z transform. I have incomplete frequency domain data and would like to transform it into the time domain. But the help and output of the function does not make sense. Years ago, there was this thread. 

The same problem seems to exist today. The Help for the function gives this diagram (picture only not a VI):

The example for the Chirp-Z transform works perfectly, it gives the frequency domain over a limited range. (Example attached here). However, if you try to inverse the transformation according to diagram above, you get nothing. If you reduce the number of bins to the Inverse Chirp Z Transform input then you get an answer, but it is non-sensical as the values are exceedingly large as seen in the previous thread. (Note I added the diagram above to the example, it's not there in the original.)

Anybody have an idea about how this works or if this is a bug?

Thanks