"this" is unable to reference custom business object elements...

Hello,

I have created a new custom business object with elements and associations in the cloud application studio and activated the BO successfully. Then started implementing the after-modify event in the script files. However, the "this" is unable to reference the elements in the custom BO. It does not show any of the custom elements but shows only the associations. When I try to activate ignoring the message, I get an error saying "Identifier does not exist". This was not the case before the upgrade to 1705. Any help on how to fix this?screen-shot-2017-05-03-at-51734-pm.pngscreen-shot-2017-05-03-at-51942-pm.png