Stress Raw2tostress

Hello,

I am trying to display the stress field in ParaView, for this purpose I am using the Raw2tostress tool. When observing the image generated there is a rare behavior in the z- direction, where the sample begins there are some stresses that shouldn't be there. This is very strange because when plotting the raw data there are no forces in that region and still stresses are appearing. I am using the Esysparticle 2.3.5 version and I am not sure if the Raw2tostress tool has some modification in this version or if I am making a mistake. Thanks in advance,

Best Regards,
Cesar