Hi Wobblyknee. This continues to point to the position of the knee when the issue is provoked, either the patella position or the compression of the fat pad and meniscal structures in the front of the knee under load. The causes of knee issues, in the absence of direct trauma, are often the result of overuse or overloading. This is why your therapist has looked at the mechanics of your hip and perhaps lower back. Once that is addressed it might be that there is a focal issue of discomfort which might in a way have been the precursor to moving in a certain way. It is positive to highlight this focal point and so the advice right now is to return to your therapist for a review and progress of your treatment plan. They might also assess your ankle and your superior tib/fib joint (side of the knee) as I have found superior tib/fib joint issues have lead to persistent knee pain and treating that joint, which is very simple, has lead to the resolution of the discomfort.