SAP Analysis 2.5 Custom Ribbon Macro

I noticed one of the new features in Analysis 2.5 was the ability to customize the ribbon by adding Macros to newly created buttons.

I believe I've used the appropriate syntax for my VBA, however, after doing the set-up in the Customize Analysis Ribbon part, when I click the newly created custom button nothing happens. The macro does not run, nor is there an error message.

If I attempt to manually run onExecuteFYCopy it will run the macro as I would expect, but not via the newly created custom button.

Can someone please advise, maybe I'm missing something plainly obvious or my syntax in the Analysis Customize area is incorrect?