Can only bleed one rear brake

Happy New Year All! I replaced my rear brakes yesterday and when I went to bleed them (also replaced the wheel cylinders), I used the quick bleed method successfully on the LR but on the RR there seems to be no pressurized fluid present. On the LR I could hear the motor running as the fluid ran into my container, but on the RR the motor just momentarily runs which I gather is it building pressure and shutting off. Any thoughts on why I cannot get fluid at the bleed screw? I know these systems are complicated and this may be a solenoid or something that is not opening for some reason. Thanks for any assistance!

 

Thanks for the reply! OK, I bet that's what happened, as when I was working on the left side, I changed the wheel cylinder and bled a lot of fluid out to clean out the old fluid. I didn't change the RR cylinder as I could not get the brake line out of the cylinder and since it wasn't leaking I left it. Since then as I suspected a stuck or clogged cylinder I removed it by disconnecting the line upstream and pulling the line and cylinder out together. I did not do any of the steps you mentioned, I just depressed the pedal and let the actuator pump fluid. I'll research how to reset things.