The next word is in Swedish and behaves in the same way. If I give up and press Change, it changes it to Garland and moves to the next word. A bit strange after 80 pages of no problems. Define brings up a pop up window with info about the person. With the 'spelling options' window open it will not let me Find next, Ignore or Learn. There is got stuck on a word (A name: Gatland). The other day I started a new spell check which worked fine until page 81. Currently working on a book and the spell checker is playing up. I am on Mac Desktop, Affinity Publisher 1.7.3 and OS 10.14.6.
