I have the same problem, no data (i need at least lateral and longitudinal force) received by the converter.
I'm using x-sim 188.8.131.52 , Project cars 184.108.40.206.
Use shared memory is checked in pCARS.
My configuration is running perfectly with Race07 demo.
I already cleaned registry with the xsim tool.
I don't know where to find any logs to go further with this issue.