Word suggestions stopped working

When I type something incorrectly, Scrivener underlines it with red, but there no suggestions even for the simplest of words. It says ‘no guesses found’. This started a couple of days ago. Before that, everything worked fine. How can I fix it?
Thank you.

Hello,

Perhaps, you need to check the options in the spellcheck. Try to re-install Scrivener and then go to Edit >> Options >> Auto-Correction and there make sure that the first option is checked - “check spelling as you type”. I usually have this one checked too - “Correct Spelling errors as you type.”

Perhaps it’s to do with this known Apple bug: [url]https://forum.literatureandlatte.com/t/spellcheck-oddity-with-the-text-straight-and-narrow/42652/1]. Perhaps not.