Speaker is making crackling noise after stick replacement

Hallo!

I need some help. I replaced my two sticks after they drifted, and while putting everything back together, I thought I heard arcing. See the first video as a link.

However, I did not smell anything weird, so I investigated, and I am 99% sure it is the speaker making contact with the pins it is supposed to make contact with (video 2).

I tried cleaning all contacts, but it keeps happening.

Does anyone have any suggestions on how to fix it?

Or is it maybe harmless?

Thanks!

https://youtu.be/uEYrqNzAjII

https://youtube.com/shorts/bjKlrilbiVQ?f...