flashing cfw on top of other cfw without cleaning could and will cause lot of issues (i've experienced them myself),especially with webman.
it's always good idea and a safe bet to do full restore from recovery after flashing,and to fully clean previous webman installs i've found that reflashing cfw is the way to go.
so to recap,do a full restore,reflash overflow v5 noBD,do again full restore from recovery and use integrated webman.then,if it's not working,it's because you have bad backups/rips.
are you sure your blueray isn't working properly?