BB .4mm print core not recognized

[danimo1 0]

I have a clogged BB .4mm print core on my S5. Couldn't clear it. So, I took the BB .4mm print core out of my UM3 Extended and swapped it in. The S5 doesn't recognized this core. Is it not possible to swap these between machines? Nothing is loose as the clogged core still gets recognized in the S5. 

[danimo1 0]

A quick add on here... Now neither BB .4mm print core is being recognized by the S5. Something must have come loose? The AA print core is still being recognized however. 

Edited January 9, 2020 by danimo1