So was at a track yesterday and after doing a step up I went up off the track to talk to my buddies and randomly my front brake wouldn't release. So after I make it off the track and start heading back to my truck and had embarrassing wipe out when it completely locked up luckily the track owner came over and we bled the pressure off it through the bleeder and after that it worked great for quite a while and rode the smaller track they have. So I go back out on the big track and did a few laps I hit the same step up again and go up off the track and it locks up again. Ended up just taking the whole system off and riding without a front brake but has anyone else ever had this issue? Plan on getting rebuild kits for the master cylinder and the caliper and cleaning everything up really good, and the bike is completely stock still. Any help appreciated!!!