Apple Pencil Connecting But not Working?

My Apple Pencil appears to be working normally: it connects, charges both through the iPad and through a separate cable perfectly, however my iPad does not respond to it? This is a recent development, and I have both attempted to calibrate the iPad, pencil and tip (going so far as to buy a replacement tip) but it remains unsuccessful- does anyone know any possible solutions or should I simply go to a store and attempt to get it repaired?