I used to have a fantastic short game...up and down from under the 4x4 in the car park...but just like the putters who get the yips.....chipping yips...but its worse. 3 years of hell and a rising handicap until Shawn Clement on U Tube demonstrated the flying wedge technique. ...cured...chips, pitches, everything. Maintain the right wrist angle.
Check out Shawn Clement...he is the best teacher full stop. I wish I lived in Toronto Canada....