It is due to MySql server configuration which is not fully UTF8 configured.
You should have in my.ini :
[mysql]
default-character-set=utf8
[mysqld]
character-set-server = utf8
If it's not, characters stores in database may not be fully UTF8 compliant.
To fix this, there is a new parameter in ProjeQtOr :
This is set to 1 for new installs in order to work correctly on with UTF8, but should not be used afterwards.
To haved it work correctly with an existing database, you should :
- export database in UTF8 format
- open exported file : you'll see it's not really full UTF8
- convert file into UTF8 (with notepad++ for instance)
- reimport data
- set $enforceUTF8='1'; in parameters.php file
This should fix issue.