Close event broken on VectorWorks 12?

Does anybody manage to close a document through AppleScript in VectorWorks 12?
It seems that the event coreclos is not properly recognized any more. Every attempt leads to immediate quitting of the application. It works properly on VW 11.

Can anybody conferm?

Thank you, Orso

Model: PowerBook g4, 1500
AppleScript: 1.9.3
Browser: Safari 312.6
Operating System: Mac OS X (10.3.9)