sorry for my poor english
i installed mybb 1.8.12 on my vps and import my old database to that new mybb ,my problem is that character at the end of last thread title in the below image
can we have your forum url & which character encoding you have used for the database ..
how i know character encoding?
i dump my database like that
#mysqldump --default-character-set=utf8 mydatabase -r database.dump
and import database like that
[mariadb mydatabase]#set names 'utf8';
[mariadb mydatabase]#source path of my database.dump