Apple Pencil only works when tip is wrapped in tin foil

My Apple Pencil connects to my iPad via Bluetooth and the double-tap feature to switch tools works perfectly. However, it will not draw or register any touch on the screen unless I wrap the tip in tin foil. I have already replaced the tip 6 times with official Apple tips and verified the gold transducer pin is straight and clean. I've tried forgetting the device, restarting the iPad, and checking accessibility settings. Has anyone found a way to fix this without replacing the whole Pencil? Is there a known internal grounding issue that causes this?