I have got similar problems.
CLS-MK2 yoke &rudder
I had 5.4.7installed nor Problems at all, I upgraded to 5.5.2 and new firmware, after that it went all downhill. In MSFS (I only use MSFS) I got disconnection messages in CLS2SIM (node1 & 5) randomly in a flight, I reconnect and it would work for a while but then disconnect again, sometimes the yoke would just freeze, or stutter. I went back to 5.47, it doesn’t disconnect but the yoke still freezes randomly. Could this be vJoy related? Are the old vjoy drivers installed automatically when you roll back to 5.4.7. If I open vJoy app it says 2.9.1.
I am desperate because my setup is completely broken now, I can’t fly at all with this problem of the yoke freezing randomly.
Best
Luc