Touch screen recognizing finger only s pen on note 9

I was replacing a screen on a note 9 and when I switched the motherboard and other components to the new screen and powered it on the phone would not recognize me touching it with my finger so I tried the s pen and it worked fine so then I switched everything back to the old screen thinking that it was just a defective part and it still wasn't working. I tried cleaning off the connectors for the screen and resetting the phone and neither worked. Any help would be greatly appreciated. Thank you in advance.