Non consistent results with circular reference and vlookup

[calculator]

Hi,

I have a circular reference with embedded VLOOKUP function which I solve using the iterative calculation.

However the results that I get are not consistent:

at the beginning both columns D and E produce the same result - then same implied rating and the same spread.
However if I change the debt value in the column E to something else and then once again back to original, I receive the different result.

Any ides why is that?

Thanks.

 

[AliGW]

You are getting no replies because the link to your image is not live. You would be better served by providing a link to the workbook, anyway.

 

[calculator]

https://www.dropbox.com/s/g95myk7aon7z54t/Circular reference with VLOOKUP.xlsx

 

[calculator]

You are getting no replies because the link to your image is not live. You would be better served by providing a link to the workbook, anyway.

Thanks for the advice.
I attached the link to the workbook.

and the image is: