Some assistance needed in solving a problem that won't go away. Originally I had a siezed brake caliper. Garage replaced it with a new jaguar caliper and also replaced hoses. When I got car back 1 in every 6 or 7 brake attempts would result in brake pedal going soft. Garage replace master cylinder. Brake pedal was soft all the time after that. Back to garage to get system bled properly. Brake pedal was back to normal, week later now back to pedal going soft maybe 1 in every 10 brake attempts. Thoughts folks? Issue with new master cylinder or maybe abs accumulator?

 

Sounds like a bad master cylinder. I'd go back to same shop and expect them to replace it.