Cannot set PA / K factor in "Device" tab

I’ve noticed in the recent versions of Bambu Studio I lost the ability to manually define K factor / PA. I went through all the steps of calibrating, and even made sure my calibration was saved to the right filament profile and matched the same name as the filament profile, but no matter what I do i can’t select or pick that K factor / PA.

I have the same issue, even on Bambu (non-custom) filaments. I can see the entry in the calibration list, but it doesn’t show up in the “AMS Material Setting”.

Go to the calibration tab click on flow dynamics then click on manage result, look close you will find something different in the calibrated filament vs the one you have selected on the device page. I screw this up all the time.

I know they’re different. That’s the whole point of calibrating. The problem is that the calibrated result does not show up as an option in the device settings so I can’t select it.

It is hard to explain what Im saying , probably because I dont understand it well, I almost never get it to work when I calibrate a filament, what I end up doing is go to the manage results tab and create a new result and that lets me assign it to the filament I want. Somehow when I do the calibration I dont select something correctly and it doesnt show up for my AMS but I seem to get it to work if I just create a new calibration with out doing the calibration, and I am certain it me doing it wrong but my tiny little brain mess it up every time.