Hello,
back again here for some other assistance hopefully.
In consideration of the cost of the potentiometer and the fact that the yoke is end of life, I asked a local technician to check the yoke. The reply is that the potentiometer is working fine and also the fact that the yoke is recognising by all PCs we tried and it calibrates, seems that its electronics board is working fine too. The technician is directing me to drivers or cable...cable I changed but drivers I have no clue...this has always been plug and play, calibrate and we are off.
I am attaching a link below to understand what is happening showing results of FSUIPC axis assignment page. Not sure if this can give you any insight to what is happening...I also am showing aileron control so that one can understand the difference.
https://photos.app.goo.gl/VERkHreMgp3v4SSr5
Hope for some ideas!
Thanks to all.