Your bug report

#77627: 31.0.50; prettify-symbols-mode fails when replacement CHARACTER is a composition rule

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 77627@debbugs.gnu.org.

-- 
77627: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=77627
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems