Motion sensor help

Hi all Ordered a kit and am puzzled why the board can’t recognize the motion sensors. I have six zones and the first zone i connected a basement motion sensor. Power works fine since as i walk the light comes on and off. But in smartthings, it indicates motion all the time. Its setup as normally closed. I used to have resistors at the sensor but nate suggested i remove them. I’ve tried moving to different zones and the same thing happens but i swear one time in zone 2 it managed to sense motion / no motion. But cannot replicate it anymore. I have 3 sensors around the house and its the same for all so i doubt i have 3 broken wires on all sensors. Ive cut the wire ends to make sure im using a fresh copper wire too and really make sure its tight for a good connection and cant pull it out. Nate confirmed that the board is working as it should via a jumper wire across the temrinals at zone 1 so the board was manufactured properly. The only thing i found suspicious is the gauge wire and insulation cover at the sensor is different than at the alarm panel??? I know its the right set of wires since the power is there but are the wires spliced in the wall? Why would they do that? Anyways, long story short. Been farting around with this for a month and nate nor i can figure out whats wrong and am losing hope. Ideas??? Thanks in advance, Rudy