Ok guys after weeks of fighting with my 1050 priming issues i finaly got it working.
I have done and checked all the fixes on all the forums and still had no joy, i hope this helps you people still having no joy.
I had to find out at what point in the process the primer was turning sideways or getting smeared or not seating at all and falling on to the bench.
Whilst moving the arm slowly and with the white cover off the priming station i observed the primer always correctly seated in the slider bar that transferes the primer from the tube to the case. so it was good there.
Then i wached it start to come up on top of the punch and noticed it move sometimes falling off completely or just slightly off to one side resulting in the primer getting smeared, crushed etc, what was causing this was the snap back of the decapping / sizing die, dillons one is spring loaded and as the old primer is pushed out it snaps back and the vibration alone disrupts the primer sitting on top of the primer punch. Believe it or not. simple fix was to place a spacer between the sir clip and die body, problem solved, hope this helps you guys out there, let me know.
Cheers Paul