Filter Col Selector() does not create right-click formulas

FN

I have an add-in that has a 'Filter Col Selector'.

 

Yet, new formula columns don't appear when I try to create quick calculations by using right-click actions. 

 

The issue seems related to the following post, although new formulas columns created directly in the table do appear in the Filter Col Selector. Refresh Filter Col Selector() after action that groups columns 

 

FN

I re-made the elements in the GUI and got it working. Not sure what was the issue but this time it works as expected.