Brakes at 101% going to zero

[3stringcigar]

Brakes at 101% going to zero (CSL Load Cell)
Hopped into RR today, came to first corner and after heavy braking kept going. On investigation, after 100% braking, keeping foot on brake, it went straight to zero. Reducing pressure slightly returned to 100%. I can't seem to find any reason. Has anyone else had this experience and fixed it somehow?

 

[Majuh]

You could try an upper brake deadzone.