Ascension trophy bugged at 95% - Cicada Shell missing

I'm stuck at 95% for the Wo Long "Ascension" trophy. l've given 19 Golden Cicada Shells, but on Tyrant's Final Banquet, the map shows one more — except it's just a throwing knife when I go there. I picked it up, and now the Cicada Shell is gone and not respawning. Already tried restarting, reloading — don't want to do NG+. Anyone fixed this without starting over? Is it completely bugged now?