MacOS dictionary look up stopped working

I'm suddenly unable to use the dictionary look up feature in MacOS. When I choose "Look up" on a word I get a dialog saying that "Look Up now shows personalized suggestions... etc" and a button on the bottom that says "Continue" (see image). But the button does not respond to clicking it, so I'm stuck with this message. Neither updating the OS nor restarting seems to mend the issue.

Using MacOS High Sierra 10.13.3

Solution 1:

Found a quick fix. Just turning of Spotlight suggestions in Look up brought back the dictionary.

Not being able to click the button previously still seems like a bug to me though.