Hi John, unfortunately nothing from your suggested procedures works. Though I put the function of the Flapssetting to a button, it does not work, too. I thought, that the thrustmaster could be defect. I tried another Joystick and the result was the same. No Button and no axis let move the Flaps in the sim. So it can not be the Thrustmaster itself, I think.
What`s interesting is, that only the thrustlever works fine in FSUIPC.
If I switch on the controls in the P3D controlsection, the Spoilerlever works fine, and the Flapslever does work for Flaps 1 to 30, but does not work for Flaps 0 and Flaps 40.
This is all strange.
I think, I have to contact PMDG for Support.