R53 won't shift when system is pressurized
 

The clutch won't disengage. The car will run through gears just fine when it is off but the second it is turned on it wont shift into any gear went through the slave bled that,currently going through master and everything seems fine there as well. Anyone else ever have this issue if so what did you do?

Happened to me today. Driving along Shift into third, pushed clutch to floor and shifted, pedal did not return. Used the top of foot to return pedal, tried clutch but would not engage. Stuck solid in gear. Engine off - shifts fine , can even press in clutch and start car and while in gear it will drive, but only in that gear. Engine on, clutch in, not possible to put into gear.
Looked for leaks at master and slave cylinder, none detected. Clutch slave moves the clutch lever when pedal is pressed.
Cannot find definitive answers for issue.
Still scratching at it.
Help / assistance greatly welcomed.
2006 Mini Cooper S R53 Hatch