I have installed a 27 round AG with beaded liner, Pool is a Mighty Sun. Liner is tight and twice filling the liner will buckle wall all around the pool at about 10 inches of water. Pool is level to quarter inch on all supports using a trant level. Transit is level at 360 degrees. I am well trained at using optical levels. The pool is all resin including top track. This is my forth pool install over the years , all with beaded tracks along with several liner change outs and never a issue until now. Any suggestions?