Your bug report #70989: 29.3; Calling isearch-forward when using Unifont throws error "Invalid font name" which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 70989@debbugs.gnu.org. -- 70989: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=70989 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems