A1 Mini lead screw/z-axis noise

Bambu Lab A1 Series Bambu Lab A1 mini
1

Hey, I am having a problem as can be seen in the videos. I have searched a bit around the forum and couldnt really find any issue that for sure related to mine, hence I am posting.

For additional context, I have not printed for the past 2 months as I had a break, and when I started again, thats what happened. I greased and lubed everything up and that changed nothing.

I unscrewed and screwed back in the two screws from the z-axis to the bronze/orange part below it on the lead screw, but the problem remains. I also have cleaned up the lead screw and greased it up a lot. Any help will be appreciated.

Videos available here:

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The 2nd video from the top…the lid is on.
Can you take another with the lid off see we can see inside…??

The lead screw noise sounds fine, it sounds like there may be a piece of plastic in there or maybe the plastic mount around the lead screw is cracked.