Touch screen issues after card reader replacement

Hi All,

I recently replaced the card reader on my Nintendo switch because it stopped reading the cartridges. It can now read the cartridges but I am getting ghost touches on the touch screen when the switch is not docked. I have tried 2 replacement card readers but the issue persists. I did not have this problem before I replaced the original card reader

I have tried reinstalling my original card reader and while it would not read cards the touch screen worked. I have also disconnected the digitizer and restarted the switch with one of the new cards. Once it was booted I reconnected the digitizer and the touch screen worked properly. After rebooting again the ghost touches returned.

Any ideas?