I am on Mac Desktop, Affinity Publisher 1.7.3 and OS 10.14.6. Currently working on a book and the spell checker is playing up. The book is about 400 pages long. The other day I started a new spell check which worked fine until page 81. There is got stuck on a word (A name: Gatland). With the "spelling options" window open it will not let me Find next, Ignore or Learn. Define brings up a pop up window with info about the person. My only other option is to Change. A bit strange after 80 pages of no problems. If I give up and press Change, it changes it to Garland and moves to the next word. The next word is in Swedish and behaves in the same way. None of the necessary buttons work and, as the word is foreign it has no suggested replacements, which means Change does not work either. So I am stuck and can not continue the spell checking in any way.
I have reinstalled the software from a new Download, Save As the file to a new document, viewed it in Designer persona, saved and gone back to Publisher. Selected other text in the document but apparently it always starts the spell check from the first error in the document irrelevant to what is selected or where the cursor is. Right clicking on the word and selecting Learn does not help either. So there seems to be no way for me to move forward.