D365 Ribbon Workbench: Trying to disable the Close As Won button on Opportunity until a field has data.

Ok, I'm in the new interface of the Ribbon Workbench for D365.  The new look is good.   This is the first time I'm doing a Customized command for a button.

So the goal is to hide the "Close As Won" button until a field on the form on the Opportunity field has data.

First action according to how I understand the instruction is to right click on the "Close As Won" Field and choose "Customize command".

After that, I create an Enable Rule.  On Scott's new Video he advised if I heard him correctly that I should use the Enable Rules if data needs to be read from the form.

So, I create an enable rule and then a Value rule.

So If I have this right, it's false until my condition of "Is not Null" is true.

What am I missing here?    The button still shows.