eaton ultrashift auto, stuck in high range

hey everybody,
got a 2015 cascadia with an auto eaton ultrashift 10 speed. unit came in for a clutch replacement and after the clutch was replaced, it passed calibration fine. upon moving the truck it dropped into reverse and showed R1 on the display, but moving in reverse it shuddered as if it was in a higher gear, rolling back i heard a shift and the display now read R3, weird, so i put it in drive and the display read 2, moving in 2 it did not accelerate and the rpm was bouncing like it was trying to shift, it does huge clunk and you can feel it slam into a gear and the display then reads 6, it shifts fine 6 to 10 but wont downshift from 6 and beeps if manually commanded until the ignition is cycled where it will do the same thing over. it has one code for spn 769 fmi 7, low range mechanical system not responding, in response to the code, i changed the range solenoid, the air regulator and the yoke bar and all the o-rings. same issue continued. Removed the rear section and saw the small splitter gear had worn teeth so i replaced it, with the rear section off the range yoke moves in and out but does require some tapping with a mallet, the splitter yoke moves in and out freely, put it back together and same issue, replaced splitter valve, same issues, replaced xy shifter and same issue occurs with the same code, at a loss at what it could be, any ideas? also to clairfy unit did not have this issue before the clutch replacement

 

the air regulator has been changed along with the solenoid, the mallet moved it easily and was movable by hand but required a tiny bit of force, could it be overcoming the vacuum pressure of the yoke bar? since its sealed air and there was no lubrication since the section was out

 

It was not sent off to get rebuilt as we didn’t find any issues with it, the parts highlighted in the diagram were replaced along with the yoke bar