Front brake lever has no play and brake stuck on

The front brake lever on my 2005 Kodaik 400 has no play and the brakes are at least partially stuck on. Thinking I had a clog in the brake lines, I replaced them all and rebuilt the master cylinder. After bleeding the system, the brakes seemed to work good…at least in my driveway. Not 15 minutes into my first ride, the exact same thing happened again.

The pads are good so all that is left is the rotors and caliper pistons.

Any ideas on what I should try next?