UI Action isn't getting displayed on the form.

[SounakPal]

The problem given was to create a simple onClick UI Action on a form. However, even if the condition is matching or even if I keep the condition as a dummy true value the UI Action button isn't showing up on the form. Any help will be much appreciated since both from button and active is checked as true. 

[SounakPal]

We are trying to enable "Create Knowledge" UI action on incident table so that whenever the user clicks on this button then it will create a draft Knowledge article. To achieve this, we have activated an OOTB UI action "Create Knowledge" but it's still not showing the button on the incident form. So, any help will be much appreciated.