Dark Magic bearing

i just got my DM. but after 2 days it just was responsive.
i know its ajustabel gap. i tried to replase the bearing with my New Breed-bearing.
it worked but now the New Breed is responsive and the DM is just unresponsive.
how can i fix it

get a new bearing. Or just clean it and see if that workes

If it was unresponsive before, and two days later it is responsive and you haven’t made any changes, then the bearing most likely needs to be lubed (thin) or cleaned and lubed.

Clean the bearing in a little lighter fluid or mineral spirits and lightly thin lube it. If that doesn’t fix it, you can get replacement bearings for relatively cheap.