Custom calculation script disappears when selecting Edit - BUG???

[Carol24105057x4h4]

I need to edit a Custom Calculation Script I wrote a few months ago in my form. I opened up the field properties, navigated to the Calculation tab, and I can see the script. I click Edit and the pop up window is blank! When I close this window, the script is gone.  This has happened **twice** now.

Is this a new bug? Any way to get the script back? 

I have the latest version of the application.

[try67]

Does your code happen to contain the text "AF", by any chance?

[Carol24105057x4h4]

No it didn't have "AF" in it. 

[try67]

Did you open the file in any other PDF viewer, beside Adobe Acrobat or Reader?

Can you share the file, and your code?