Review on Jevtech Replacement Type C to MagSafe Adapter: USB C MagSafe Adapter for MacBook Pro, Chromebook by Jay Ngo

The adapter works great, allowing me to use an old Mag charger with a 2019 17" MBP. jump to the screen. I thought it was just "typical" touchpad sensitivity as my hand moved across the surface. But I decided to see if the adapter had any effect. Every time I REMOVE the adapter, full functionality returns to the touchpad. When I plug the adapter back in, the erratic behavior continues. I've tried plugging the adapter into the USB-C input of the multiport dongle I have and then plugging the dongle into the MBP. No improvements. .