Shortcode within dynamic widget is not working

I have written a shortcode that returns string “XYZ” when certain parameter “ABC” is passed within shortcode i.e. [shortcode param=ABC] => returns XYZ.

Within Dynamic Widget, under shortcode condition criteria, I want to have this widget display across the site except when the shortcode returns XYZ, so,
[shortcode param=ABC] “matches” XYZ.

But this does not seems to be working, I have also tried using "XYZ", still not working.

I have also verified that shortcode returns only String and not any special characters like <TAB> <SPACE> etc.

Any suggestions?

Thanks.