Link URL on straight table doesn't work

[#1]

Hello all,

In the underneath straight table i am using the following expression to show a url link in the column name Link.

The current expression is:   'Facebook Feed Link'&'<URL>'&Feed_link

The current problem is that not every row shows a possibilty to click on the Link. see the first row in the straight table bellow.

Do u guys have any tips/answers?

Thanks regards,