ISP: Videotron
Type of Internet Connection: Cable
Internet Connection Speed: 30mbps
Date & Time: since 1.20b
Frequency: random
Character Name: Rata Tapa
Race: Lalafell Plainsfolk
World: Rabanastre
Class/Level: CNJ50
Area and Coordinates: Bowl of Embers (Hard), Thornmarch, Nophica's Wells
Party or Solo: Party (leader at one party, member at the other 2)

I would like to say i got the same problem also using a gamepad

To add to Crim's problem

the number of Pt members you can't target is random i did a PT once where i couldn't target 3 pt members and in the other PT i couldn't target1

But it's annoying as CNJ :P