Can't save my app's description

I wanted to edit my app's description, and I can't save it. Even when I do no change, just try to save the current text. It works for other apps, so I guess it has something to do with the characters in the description.

See: https://forums.garmin.com/developer/connect-iq/i/bug-reports/bug-can-t-save-the-description-in-the-app-store